2100021021122 has 16 divisors (see below), whose sum is σ = 3153063728160. Its totient is φ = 1048999915392.

The previous prime is 2100021021107. The next prime is 2100021021169. The reversal of 2100021021122 is 2211201200012.

It is a junction number, because it is equal to n+sod(n) for n = 2100021021097 and 2100021021106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43892129 + ... + 43939947.

It is an arithmetic number, because the mean of its divisors is an integer number (197066483010).

Almost surely, 2^{2100021021122} is an apocalyptic number.

2100021021122 is a deficient number, since it is larger than the sum of its proper divisors (1053042707038).

2100021021122 is a wasteful number, since it uses less digits than its factorization.

2100021021122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68497.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2100021021122 its reverse (2211201200012), we get a palindrome (4311222221134).

The spelling of 2100021021122 in words is "two trillion, one hundred billion, twenty-one million, twenty-one thousand, one hundred twenty-two".