1021022020011 has 16 divisors (see below), whose sum is σ = 1571247468288. Its totient is φ = 577664508000.

The previous prime is 1021022020003. The next prime is 1021022020033. The reversal of 1021022020011 is 1100202201201.

It is not a de Polignac number, because 1021022020011 - 2³ = 1021022020003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1021022020061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 240691425 + ... + 240695666.

It is an arithmetic number, because the mean of its divisors is an integer number (98202966768).

Almost surely, 2^{1021022020011} is an apocalyptic number.

1021022020011 is a deficient number, since it is larger than the sum of its proper divisors (550225448277).

1021022020011 is a wasteful number, since it uses less digits than its factorization.

1021022020011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481387202.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1021022020011 its reverse (1100202201201), we get a palindrome (2121224221212).

The spelling of 1021022020011 in words is "one trillion, twenty-one billion, twenty-two million, twenty thousand, eleven".