212021103102 has 16 divisors (see below), whose sum is σ = 426743113872. Its totient is φ = 70223549760.

The previous prime is 212021103031. The next prime is 212021103127. The reversal of 212021103102 is 201301120212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112536799 + ... + 112538682.

It is an arithmetic number, because the mean of its divisors is an integer number (26671444617).

Almost surely, 2^212021103102 is an apocalyptic number.

212021103102 is an abundant number, since it is smaller than the sum of its proper divisors (214722010770).

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

212021103102 is a wasteful number, since it uses less digits than its factorization.

212021103102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225075643.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 212021103102 its reverse (201301120212), we get a palindrome (413322223314).

The spelling of 212021103102 in words is "two hundred twelve billion, twenty-one million, one hundred three thousand, one hundred two".