212102021111010 has 32 divisors (see below), whose sum is σ = 509047478966592. Its totient is φ = 56560246929600.

The previous prime is 212102021111003. The next prime is 212102021111027. The reversal of 212102021111010 is 10111120201212.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12313216 + ... + 23996235.

It is an arithmetic number, because the mean of its divisors is an integer number (15907733717706).

Almost surely, 2^{212102021111010} is an apocalyptic number.

212102021111010 is an abundant number, since it is smaller than the sum of its proper divisors (296945457855582).

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

212102021111010 is a wasteful number, since it uses less digits than its factorization.

212102021111010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36504178.

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

Adding to 212102021111010 its reverse (10111120201212), we get a palindrome (222213141312222).

The spelling of 212102021111010 in words is "two hundred twelve trillion, one hundred two billion, twenty-one million, one hundred eleven thousand, ten".