1202022021021 has 32 divisors (see below), whose sum is σ = 1635938304000. Its totient is φ = 784951352640.

The previous prime is 1202022020971. The next prime is 1202022021097. The reversal of 1202022021021 is 1201202202021.

It is not a de Polignac number, because 1202022021021 - 2⁶ = 1202022020957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202022021721) 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, 9522880 + ... + 9648278.

It is an arithmetic number, because the mean of its divisors is an integer number (51123072000).

Almost surely, 2^{1202022021021} is an apocalyptic number.

It is an amenable number.

1202022021021 is a deficient number, since it is larger than the sum of its proper divisors (433916282979).

1202022021021 is a wasteful number, since it uses less digits than its factorization.

1202022021021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125849.

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

Adding to 1202022021021 its reverse (1201202202021), we get a palindrome (2403224223042).

The spelling of 1202022021021 in words is "one trillion, two hundred two billion, twenty-two million, twenty-one thousand, twenty-one".