202102101222 has 128 divisors (see below), whose sum is σ = 485606016000. Its totient is φ = 56016172800.

The previous prime is 202102101211. The next prime is 202102101277. The reversal of 202102101222 is 222101201202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15096972 + ... + 15110352.

It is an arithmetic number, because the mean of its divisors is an integer number (3793797000).

Almost surely, 2^202102101222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 202102101222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (242803008000).

202102101222 is an abundant number, since it is smaller than the sum of its proper divisors (283503914778).

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

202102101222 is a wasteful number, since it uses less digits than its factorization.

202102101222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13627 (or 13613 counting only the distinct ones).

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

Adding to 202102101222 its reverse (222101201202), we get a palindrome (424203302424).

The spelling of 202102101222 in words is "two hundred two billion, one hundred two million, one hundred one thousand, two hundred twenty-two".