1210020002090 has 8 divisors (see below), whose sum is σ = 2178036003780. Its totient is φ = 484008000832.

The previous prime is 1210020002089. The next prime is 1210020002099. The reversal of 1210020002090 is 902000200121.

It can be written as a sum of positive squares in 2 ways, for example, as 1114538384089 + 95481618001 = 1055717^2 + 309001^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1210020002099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60501000095 + ... + 60501000114.

Almost surely, 2^{1210020002090} is an apocalyptic number.

1210020002090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1210020002090 is a deficient number, since it is larger than the sum of its proper divisors (968016001690).

1210020002090 is a wasteful number, since it uses less digits than its factorization.

1210020002090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121002000216.

The product of its (nonzero) digits is 72, while the sum is 17.

The spelling of 1210020002090 in words is "one trillion, two hundred ten billion, twenty million, two thousand, ninety".