1022021000120 has 32 divisors (see below), whose sum is σ = 2434814737200. Its totient is φ = 384760846848.

The previous prime is 1022021000101. The next prime is 1022021000123. The reversal of 1022021000120 is 210001202201.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022021000123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 751485350 + ... + 751486709.

Almost surely, 2^{1022021000120} is an apocalyptic number.

1022021000120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1022021000120 is an abundant number, since it is smaller than the sum of its proper divisors (1412793737080).

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

1022021000120 is a wasteful number, since it uses less digits than its factorization.

1022021000120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1502972087 (or 1502972083 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 1022021000120 its reverse (210001202201), we get a palindrome (1232022202321).

The spelling of 1022021000120 in words is "one trillion, twenty-two billion, twenty-one million, one hundred twenty", and thus it is an aban number.