1225202151 has 8 divisors (see below), whose sum is σ = 1633824000. Its totient is φ = 816690872.

The previous prime is 1225202149. The next prime is 1225202171. The reversal of 1225202151 is 1512025221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1225202151 - 2¹ = 1225202149 is a prime.

It is a super-2 number, since 2×1225202151² = 3002240621630053602, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225202101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3100 + ... + 49598.

It is an arithmetic number, because the mean of its divisors is an integer number (204228000).

Almost surely, 2^1225202151 is an apocalyptic number.

1225202151 is a deficient number, since it is larger than the sum of its proper divisors (408621849).

1225202151 is an equidigital number, since it uses as much as digits as its factorization.

1225202151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55285.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 1225202151 is about 35002.8877522984. The cubic root of 1225202151 is about 1070.0463342092.

Adding to 1225202151 its reverse (1512025221), we get a palindrome (2737227372).

The spelling of 1225202151 in words is "one billion, two hundred twenty-five million, two hundred two thousand, one hundred fifty-one".