2100001201122 has 16 divisors (see below), whose sum is σ = 4581820802592. Its totient is φ = 636364000320.

The previous prime is 2100001201117. The next prime is 2100001201141. The reversal of 2100001201122 is 2211021000012.

It is a junction number, because it is equal to n+sod(n) for n = 2100001201098 and 2100001201107.

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, 15909099943 + ... + 15909100074.

It is an arithmetic number, because the mean of its divisors is an integer number (286363800162).

Almost surely, 2^{2100001201122} is an apocalyptic number.

2100001201122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2100001201122 is an abundant number, since it is smaller than the sum of its proper divisors (2481819601470).

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

2100001201122 is a wasteful number, since it uses less digits than its factorization.

2100001201122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31818200033.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 2100001201122 its reverse (2211021000012), we get a palindrome (4311022201134).

The spelling of 2100001201122 in words is "two trillion, one hundred billion, one million, two hundred one thousand, one hundred twenty-two".