101211120156 has 24 divisors (see below), whose sum is σ = 236166966784. Its totient is φ = 33735942000.

The previous prime is 101211120113. The next prime is 101211120163. The reversal of 101211120156 is 651021112101.

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, 303381 + ... + 542643.

Almost surely, 2^101211120156 is an apocalyptic number.

It is an amenable number.

101211120156 is an abundant number, since it is smaller than the sum of its proper divisors (134955846628).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101211120156 is a wasteful number, since it uses less digits than its factorization.

101211120156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274521 (or 274519 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 21.

Adding to 101211120156 its reverse (651021112101), we get a palindrome (752232232257).

The spelling of 101211120156 in words is "one hundred one billion, two hundred eleven million, one hundred twenty thousand, one hundred fifty-six".