1021121021202 has 16 divisors (see below), whose sum is σ = 2044103716512. Its totient is φ = 340063394720.

The previous prime is 1021121021177. The next prime is 1021121021233. The reversal of 1021121021202 is 2021201211201.

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, 77562624 + ... + 77575787.

It is an arithmetic number, because the mean of its divisors is an integer number (127756482282).

Almost surely, 2^{1021121021202} is an apocalyptic number.

1021121021202 is an abundant number, since it is smaller than the sum of its proper divisors (1022982695310).

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

1021121021202 is a wasteful number, since it uses less digits than its factorization.

1021121021202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155139513.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1021121021202 its reverse (2021201211201), we get a palindrome (3042322232403).

The spelling of 1021121021202 in words is "one trillion, twenty-one billion, one hundred twenty-one million, twenty-one thousand, two hundred two".