1011202220020 has 24 divisors (see below), whose sum is σ = 2123543568384. Its totient is φ = 404477286816.

The previous prime is 1011202219961. The next prime is 1011202220099. The reversal of 1011202220020 is 200222021101.

It is a happy number.

It is a congruent number.

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, 4185357 + ... + 4420363.

It is an arithmetic number, because the mean of its divisors is an integer number (88480982016).

Almost surely, 2^{1011202220020} is an apocalyptic number.

1011202220020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011202220020 is an abundant number, since it is smaller than the sum of its proper divisors (1112341348364).

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

1011202220020 is a wasteful number, since it uses less digits than its factorization.

1011202220020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450159 (or 450157 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1011202220020 its reverse (200222021101), we get a palindrome (1211424241121).

The spelling of 1011202220020 in words is "one trillion, eleven billion, two hundred two million, two hundred twenty thousand, twenty".