1202102021022 has 64 divisors (see below), whose sum is σ = 2817086722560. Its totient is φ = 334810998144.

The previous prime is 1202102020969. The next prime is 1202102021027. The reversal of 1202102021022 is 2201202012021.

It is a junction number, because it is equal to n+sod(n) for n = 1202102020992 and 1202102021010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202102021027) 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, 265408 + ... + 1573100.

It is an arithmetic number, because the mean of its divisors is an integer number (44016980040).

Almost surely, 2^{1202102021022} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1202102021022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1408543361280).

1202102021022 is an abundant number, since it is smaller than the sum of its proper divisors (1614984701538).

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

1202102021022 is a wasteful number, since it uses less digits than its factorization.

1202102021022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1308257.

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

Adding to 1202102021022 its reverse (2201202012021), we get a palindrome (3403304033043).

Subtracting 1202102021022 from its reverse (2201202012021), we obtain a palindrome (999099990999).

The spelling of 1202102021022 in words is "one trillion, two hundred two billion, one hundred two million, twenty-one thousand, twenty-two".