1022121200120 has 64 divisors (see below), whose sum is σ = 2328461160480. Its totient is φ = 403766378496.

The previous prime is 1022121200077. The next prime is 1022121200123. The reversal of 1022121200120 is 210021212201.

It is a junction number, because it is equal to n+sod(n) for n = 1022121200095 and 1022121200104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022121200123) 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, 1529912 + ... + 2094008.

Almost surely, 2^{1022121200120} is an apocalyptic number.

1022121200120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1022121200120 is an abundant number, since it is smaller than the sum of its proper divisors (1306339960360).

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

1022121200120 is a wasteful number, since it uses less digits than its factorization.

1022121200120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564672 (or 564668 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1022121200120 its reverse (210021212201), we get a palindrome (1232142412321).

The spelling of 1022121200120 in words is "one trillion, twenty-two billion, one hundred twenty-one million, two hundred thousand, one hundred twenty".