2001210102122 has 32 divisors (see below), whose sum is σ = 3745123983360. Its totient is φ = 779150332080.

The previous prime is 2001210102109. The next prime is 2001210102161. The reversal of 2001210102122 is 2212010121002.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 2001210102097 and 2001210102106.

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, 4293638 + ... + 4736849.

It is an arithmetic number, because the mean of its divisors is an integer number (117035124480).

Almost surely, 2^{2001210102122} is an apocalyptic number.

2001210102122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2001210102122 is a deficient number, since it is larger than the sum of its proper divisors (1743913881238).

2001210102122 is a wasteful number, since it uses less digits than its factorization.

2001210102122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9031946.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2001210102122 its reverse (2212010121002), we get a palindrome (4213220223124).

The spelling of 2001210102122 in words is "two trillion, one billion, two hundred ten million, one hundred two thousand, one hundred twenty-two".