2100020122201 has 4 divisors (see below), whose sum is σ = 2112158967012. Its totient is φ = 2087881277392.

The previous prime is 2100020122183. The next prime is 2100020122229. The reversal of 2100020122201 is 1022210200012.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2047188640000 + 52831482201 = 1430800^2 + 229851^2 .

It is not a de Polignac number, because 2100020122201 - 2²⁵ = 2099986567769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2100020122601) 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, 6069422146 + ... + 6069422491.

It is an arithmetic number, because the mean of its divisors is an integer number (528039741753).

Almost surely, 2^{2100020122201} is an apocalyptic number.

It is an amenable number.

2100020122201 is a deficient number, since it is larger than the sum of its proper divisors (12138844811).

2100020122201 is a wasteful number, since it uses less digits than its factorization.

2100020122201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12138844810.

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

Adding to 2100020122201 its reverse (1022210200012), we get a palindrome (3122230322213).

The spelling of 2100020122201 in words is "two trillion, one hundred billion, twenty million, one hundred twenty-two thousand, two hundred one".