1021010020120 has 32 divisors (see below), whose sum is σ = 2418181628400. Its totient is φ = 386909059968.

The previous prime is 1021010020091. The next prime is 1021010020153. The reversal of 1021010020120 is 210200101201.

1021010020120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1021010020120² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 1021010020097 and 1021010020106.

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, 671716359 + ... + 671717878.

Almost surely, 2^{1021010020120} is an apocalyptic number.

1021010020120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1021010020120 is an abundant number, since it is smaller than the sum of its proper divisors (1397171608280).

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

1021010020120 is a wasteful number, since it uses less digits than its factorization.

1021010020120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1343434267 (or 1343434263 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1021010020120 its reverse (210200101201), we get a palindrome (1231210121321).

The spelling of 1021010020120 in words is "one trillion, twenty-one billion, ten million, twenty thousand, one hundred twenty".