2155202110 has 16 divisors (see below), whose sum is σ = 4083541200. Its totient is φ = 816708096.

The previous prime is 2155202107. The next prime is 2155202117. The reversal of 2155202110 is 112025512.

It is a super-2 number, since 2×2155202110² = 9289792269896904200, 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 (2155202117) 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, 5671395 + ... + 5671774.

It is an arithmetic number, because the mean of its divisors is an integer number (255221325).

Almost surely, 2^2155202110 is an apocalyptic number.

2155202110 is a deficient number, since it is larger than the sum of its proper divisors (1928339090).

2155202110 is a wasteful number, since it uses less digits than its factorization.

2155202110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11343195.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 2155202110 is about 46424.1543810978. The cubic root of 2155202110 is about 1291.7029988717.

Adding to 2155202110 its reverse (112025512), we get a palindrome (2267227622).

The spelling of 2155202110 in words is "two billion, one hundred fifty-five million, two hundred two thousand, one hundred ten".