111210212012010 has 64 divisors (see below), whose sum is σ = 274119883644672. Its totient is φ = 28854358396416.

The previous prime is 111210212011961. The next prime is 111210212012017. The reversal of 111210212012010 is 10210212012111.

It is a happy number.

It is a super-2 number, since 2×111210212012010² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (111210212012017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 320153542 + ... + 320500718.

It is an arithmetic number, because the mean of its divisors is an integer number (4283123181948).

Almost surely, 2^{111210212012010} is an apocalyptic number.

111210212012010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111210212012010 is an abundant number, since it is smaller than the sum of its proper divisors (162909671632662).

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

111210212012010 is a wasteful number, since it uses less digits than its factorization.

111210212012010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635807.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 111210212012010 its reverse (10210212012111), we get a palindrome (121420424024121).

The spelling of 111210212012010 in words is "one hundred eleven trillion, two hundred ten billion, two hundred twelve million, twelve thousand, ten".