1021221012202 has 32 divisors (see below), whose sum is σ = 1603033286400. Its totient is φ = 487005159168.

The previous prime is 1021221012197. The next prime is 1021221012239. The reversal of 1021221012202 is 2022101221201.

It is a happy number.

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, 77599699 + ... + 77612857.

It is an arithmetic number, because the mean of its divisors is an integer number (50094790200).

Almost surely, 2^{1021221012202} is an apocalyptic number.

1021221012202 is a deficient number, since it is larger than the sum of its proper divisors (581812274198).

1021221012202 is a wasteful number, since it uses less digits than its factorization.

1021221012202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17910.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1021221012202 its reverse (2022101221201), we get a palindrome (3043322233403).

It can be divided in two parts, 10 and 21221012202, that added together give a palindrome (21221012212).

The spelling of 1021221012202 in words is "one trillion, twenty-one billion, two hundred twenty-one million, twelve thousand, two hundred two".