2101210111122 has 16 divisors (see below), whose sum is σ = 4202434879392. Its totient is φ = 700400927520.

The previous prime is 2101210111087. The next prime is 2101210111153. The reversal of 2101210111122 is 2211110121012.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2378097 + ... + 3139707.

It is an arithmetic number, because the mean of its divisors is an integer number (262652179962).

Almost surely, 2^{2101210111122} is an apocalyptic number.

2101210111122 is an abundant number, since it is smaller than the sum of its proper divisors (2101224768270).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2101210111122 is a wasteful number, since it uses less digits than its factorization.

2101210111122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1221433.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 2101210111122 its reverse (2211110121012), we get a palindrome (4312320232134).

The spelling of 2101210111122 in words is "two trillion, one hundred one billion, two hundred ten million, one hundred eleven thousand, one hundred twenty-two".