1244211101 has 16 divisors (see below), whose sum is σ = 1436238720. Its totient is φ = 1055799360.

The previous prime is 1244211097. The next prime is 1244211109. The reversal of 1244211101 is 1011124421.

It is not a de Polignac number, because 1244211101 - 2² = 1244211097 is a prime.

It is a super-2 number, since 2×1244211101² = 3096122527703264402, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1244211101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244211109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 384671 + ... + 387891.

It is an arithmetic number, because the mean of its divisors is an integer number (89764920).

Almost surely, 2^1244211101 is an apocalyptic number.

It is an amenable number.

1244211101 is a deficient number, since it is larger than the sum of its proper divisors (192027619).

1244211101 is a wasteful number, since it uses less digits than its factorization.

1244211101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3764.

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 1244211101 is about 35273.3766600251. The cubic root of 1244211101 is about 1075.5518640405.

Adding to 1244211101 its reverse (1011124421), we get a palindrome (2255335522).

The spelling of 1244211101 in words is "one billion, two hundred forty-four million, two hundred eleven thousand, one hundred one".