1022021112021 has 64 divisors (see below), whose sum is σ = 1713868455936. Its totient is φ = 527303520000.

The previous prime is 1022021111953. The next prime is 1022021112043. The reversal of 1022021112021 is 1202111202201.

It is not a de Polignac number, because 1022021112021 - 2⁹ = 1022021111509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022021110021) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 22315896 + ... + 22361646.

It is an arithmetic number, because the mean of its divisors is an integer number (26779194624).

Almost surely, 2^{1022021112021} is an apocalyptic number.

It is an amenable number.

1022021112021 is a deficient number, since it is larger than the sum of its proper divisors (691847343915).

1022021112021 is a wasteful number, since it uses less digits than its factorization.

1022021112021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47562.

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

Adding to 1022021112021 its reverse (1202111202201), we get a palindrome (2224132314222).

The spelling of 1022021112021 in words is "one trillion, twenty-two billion, twenty-one million, one hundred twelve thousand, twenty-one".