1102120156 has 12 divisors (see below), whose sum is σ = 2030221480. Its totient is φ = 522056880.

The previous prime is 1102120093. The next prime is 1102120157. The reversal of 1102120156 is 6510212011.

It is a super-2 number, since 2×1102120156² = 2429337676522928672, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1102120157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7250715 + ... + 7250866.

Almost surely, 2^1102120156 is an apocalyptic number.

It is an amenable number.

1102120156 is a deficient number, since it is larger than the sum of its proper divisors (928101324).

1102120156 is a wasteful number, since it uses less digits than its factorization.

1102120156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14501604 (or 14501602 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 19.

The square root of 1102120156 is about 33198.1950714192. The cubic root of 1102120156 is about 1032.9429003880.

Adding to 1102120156 its reverse (6510212011), we get a palindrome (7612332167).

The spelling of 1102120156 in words is "one billion, one hundred two million, one hundred twenty thousand, one hundred fifty-six".