2101202120000 has 70 divisors (see below), whose sum is σ = 5210298466098. Its totient is φ = 840480832000.

The previous prime is 2101202119987. The next prime is 2101202120029. The reversal of 2101202120000 is 212021012.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 489764828224 + 1611437291776 = 699832^2 + 1269424^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 26225027 + ... + 26305026.

Almost surely, 2^{2101202120000} is an apocalyptic number.

2101202120000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2101202120000 is an abundant number, since it is smaller than the sum of its proper divisors (3109096346098).

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

2101202120000 is an frugal number, since it uses more digits than its factorization.

2101202120000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52530085 (or 52530060 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 2101202120000 its reverse (212021012), we get a palindrome (2101414141012).

The spelling of 2101202120000 in words is "two trillion, one hundred one billion, two hundred two million, one hundred twenty thousand".