1210012100004 has 24 divisors (see below), whose sum is σ = 2892224045088. Its totient is φ = 393499869760.

The previous prime is 1210012099991. The next prime is 1210012100009. The reversal of 1210012100004 is 4000012100121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (1210012100009) 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, 1229686602 + ... + 1229687585.

It is an arithmetic number, because the mean of its divisors is an integer number (120509335212).

Almost surely, 2^{1210012100004} is an apocalyptic number.

It is an amenable number.

1210012100004 is an abundant number, since it is smaller than the sum of its proper divisors (1682211945084).

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

1210012100004 is a wasteful number, since it uses less digits than its factorization.

1210012100004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2459374235 (or 2459374233 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1210012100004 its reverse (4000012100121), we get a palindrome (5210024200125).

The spelling of 1210012100004 in words is "one trillion, two hundred ten billion, twelve million, one hundred thousand, four".