1211223022 has 16 divisors (see below), whose sum is σ = 1824243120. Its totient is φ = 603148032.

The previous prime is 1211222989. The next prime is 1211223037. The reversal of 1211223022 is 2203221121.

It is a happy number.

It is a super-2 number, since 2×1211223022² = 2934122418045624968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1211222987 and 1211223005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 640254 + ... + 642142.

It is an arithmetic number, because the mean of its divisors is an integer number (114015195).

Almost surely, 2^1211223022 is an apocalyptic number.

1211223022 is a deficient number, since it is larger than the sum of its proper divisors (613020098).

1211223022 is a wasteful number, since it uses less digits than its factorization.

1211223022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3027.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1211223022 is about 34802.6295270918. The cubic root of 1211223022 is about 1065.9611392822.

Adding to 1211223022 its reverse (2203221121), we get a palindrome (3414444143).

The spelling of 1211223022 in words is "one billion, two hundred eleven million, two hundred twenty-three thousand, twenty-two".