212001222102 has 64 divisors (see below), whose sum is σ = 447592780800. Its totient is φ = 66756903840.

The previous prime is 212001222089. The next prime is 212001222107. The reversal of 212001222102 is 201222100212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212001222107) 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, 83760577 + ... + 83763107.

It is an arithmetic number, because the mean of its divisors is an integer number (6993637200).

Almost surely, 2^212001222102 is an apocalyptic number.

212001222102 is an abundant number, since it is smaller than the sum of its proper divisors (235591558698).

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

212001222102 is a wasteful number, since it uses less digits than its factorization.

212001222102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4361.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 212001222102 its reverse (201222100212), we get a palindrome (413223322314).

The spelling of 212001222102 in words is "two hundred twelve billion, one million, two hundred twenty-two thousand, one hundred two".