1210110120400 has 60 divisors (see below), whose sum is σ = 2907820892512. Its totient is φ = 483955585920.

The previous prime is 1210110120397. The next prime is 1210110120487. The reversal of 1210110120400 is 40210110121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1937119 + ... + 2484481.

Almost surely, 2^{1210110120400} is an apocalyptic number.

1210110120400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1210110120400 is an abundant number, since it is smaller than the sum of its proper divisors (1697710772112).

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

1210110120400 is a wasteful number, since it uses less digits than its factorization.

1210110120400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552908 (or 552897 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1210110120400 its reverse (40210110121), we get a palindrome (1250320230521).

The spelling of 1210110120400 in words is "one trillion, two hundred ten billion, one hundred ten million, one hundred twenty thousand, four hundred".