1021120220204 has 48 divisors (see below), whose sum is σ = 2157612871680. Its totient is φ = 413542436160.

The previous prime is 1021120220173. The next prime is 1021120220207. The reversal of 1021120220204 is 4020220211201.

1021120220204 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (1021120220207) 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, 13339892 + ... + 13416219.

It is an arithmetic number, because the mean of its divisors is an integer number (44950268160).

Almost surely, 2^{1021120220204} is an apocalyptic number.

1021120220204 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1021120220204 is an abundant number, since it is smaller than the sum of its proper divisors (1136492651476).

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

1021120220204 is a wasteful number, since it uses less digits than its factorization.

1021120220204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26756198 (or 26756196 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 1021120220204 its reverse (4020220211201), we get a palindrome (5041340431405).

The spelling of 1021120220204 in words is "one trillion, twenty-one billion, one hundred twenty million, two hundred twenty thousand, two hundred four".