2021200120102 has 32 divisors (see below), whose sum is σ = 3047687018784. Its totient is φ = 1005322560000.

The previous prime is 2021200120097. The next prime is 2021200120117. The reversal of 2021200120102 is 2010210021202.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 546120852 + ... + 546124552.

It is an arithmetic number, because the mean of its divisors is an integer number (95240219337).

Almost surely, 2^{2021200120102} is an apocalyptic number.

2021200120102 is a deficient number, since it is larger than the sum of its proper divisors (1026486898682).

2021200120102 is a wasteful number, since it uses less digits than its factorization.

2021200120102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5784.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2021200120102 its reverse (2010210021202), we get a palindrome (4031410141304).

The spelling of 2021200120102 in words is "two trillion, twenty-one billion, two hundred million, one hundred twenty thousand, one hundred two".