2101021010122 has 4 divisors (see below), whose sum is σ = 3151531515186. Its totient is φ = 1050510505060.

The previous prime is 2101021010107. The next prime is 2101021010131. The reversal of 2101021010122 is 2210101201012.

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

It can be written as a sum of positive squares in only one way, i.e., 2100061807281 + 959202841 = 1449159^2 + 30971^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525255252529 + ... + 525255252532.

Almost surely, 2^{2101021010122} is an apocalyptic number.

2101021010122 is a deficient number, since it is larger than the sum of its proper divisors (1050510505064).

2101021010122 is a wasteful number, since it uses less digits than its factorization.

2101021010122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050510505063.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2101021010122 its reverse (2210101201012), we get a palindrome (4311122211134).

The spelling of 2101021010122 in words is "two trillion, one hundred one billion, twenty-one million, ten thousand, one hundred twenty-two".