2101220210104 has 16 divisors (see below), whose sum is σ = 3945162786120. Its totient is φ = 1049176800480.

The previous prime is 2101220210039. The next prime is 2101220210237. The reversal of 2101220210104 is 4010120221012.

It is a super-3 number, since 3×2101220210104³ (a number of 38 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179156842 + ... + 179168569.

Almost surely, 2^{2101220210104} is an apocalyptic number.

It is an amenable number.

2101220210104 is a deficient number, since it is larger than the sum of its proper divisors (1843942576016).

2101220210104 is a wasteful number, since it uses less digits than its factorization.

2101220210104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358326150 (or 358326146 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2101220210104 its reverse (4010120221012), we get a palindrome (6111340431116).

The spelling of 2101220210104 in words is "two trillion, one hundred one billion, two hundred twenty million, two hundred ten thousand, one hundred four".