1211012200122 has 16 divisors (see below), whose sum is σ = 2422058123232. Its totient is φ = 403665112880.

The previous prime is 1211012200121. The next prime is 1211012200127. The reversal of 1211012200122 is 2210022101121.

It is not an unprimeable number, because it can be changed into a prime (1211012200121) 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, 925704 + ... + 1810787.

It is an arithmetic number, because the mean of its divisors is an integer number (151378632702).

Almost surely, 2^{1211012200122} is an apocalyptic number.

1211012200122 is an abundant number, since it is smaller than the sum of its proper divisors (1211045923110).

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

1211012200122 is a wasteful number, since it uses less digits than its factorization.

1211012200122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2810253.

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

Adding to 1211012200122 its reverse (2210022101121), we get a palindrome (3421034301243).

Subtracting 1211012200122 from its reverse (2210022101121), we obtain a palindrome (999009900999).

The spelling of 1211012200122 in words is "one trillion, two hundred eleven billion, twelve million, two hundred thousand, one hundred twenty-two".