1021122022120 has 128 divisors (see below), whose sum is σ = 2338987622400. Its totient is φ = 401157598464.

The previous prime is 1021122022087. The next prime is 1021122022147. The reversal of 1021122022120 is 212202211201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1021122022094 and 1021122022103.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 258968869 + ... + 258972811.

It is an arithmetic number, because the mean of its divisors is an integer number (18273340800).

Almost surely, 2^{1021122022120} is an apocalyptic number.

1021122022120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1021122022120 is an abundant number, since it is smaller than the sum of its proper divisors (1317865600280).

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

1021122022120 is a wasteful number, since it uses less digits than its factorization.

1021122022120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4559 (or 4555 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1021122022120 its reverse (212202211201), we get a palindrome (1233324233321).

The spelling of 1021122022120 in words is "one trillion, twenty-one billion, one hundred twenty-two million, twenty-two thousand, one hundred twenty".