101011111212210 has 32 divisors (see below), whose sum is σ = 243513782023680. Its totient is φ = 26815505755008.

The previous prime is 101011111212181. The next prime is 101011111212211. The reversal of 101011111212210 is 12212111110101.

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

It is a self number, because there is not a number n which added to its sum of digits gives 101011111212210.

It is not an unprimeable number, because it can be changed into a prime (101011111212211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7549403715 + ... + 7549417094.

It is an arithmetic number, because the mean of its divisors is an integer number (7609805688240).

Almost surely, 2^{101011111212210} is an apocalyptic number.

101011111212210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101011111212210 is an abundant number, since it is smaller than the sum of its proper divisors (142502670811470).

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

101011111212210 is a wasteful number, since it uses less digits than its factorization.

101011111212210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15098821042.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 101011111212210 its reverse (12212111110101), we get a palindrome (113223222322311).

The spelling of 101011111212210 in words is "one hundred one trillion, eleven billion, one hundred eleven million, two hundred twelve thousand, two hundred ten".