2101122121002 has 16 divisors (see below), whose sum is σ = 4224017530560. Its totient is φ = 696745158912.

The previous prime is 2101122120971. The next prime is 2101122121003. The reversal of 2101122121002 is 2001212211012.

It is not an unprimeable number, because it can be changed into a prime (2101122121003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 907219102 + ... + 907221417.

It is an arithmetic number, because the mean of its divisors is an integer number (264001095660).

Almost surely, 2^{2101122121002} is an apocalyptic number.

2101122121002 is an abundant number, since it is smaller than the sum of its proper divisors (2122895409558).

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

2101122121002 is a wasteful number, since it uses less digits than its factorization.

2101122121002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1814440717.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2101122121002 its reverse (2001212211012), we get a palindrome (4102334332014).

The spelling of 2101122121002 in words is "two trillion, one hundred one billion, one hundred twenty-two million, one hundred twenty-one thousand, two".