121210211221122 has 64 divisors (see below), whose sum is σ = 246889784277504. Its totient is φ = 39662749526400.

The previous prime is 121210211221097. The next prime is 121210211221133. The reversal of 121210211221122 is 221122112012121.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 484430853 + ... + 484680999.

It is an arithmetic number, because the mean of its divisors is an integer number (3857652879336).

Almost surely, 2^{121210211221122} is an apocalyptic number.

121210211221122 is an abundant number, since it is smaller than the sum of its proper divisors (125679573056382).

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

121210211221122 is a wasteful number, since it uses less digits than its factorization.

121210211221122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254383.

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 121210211221122 its reverse (221122112012121), we get a palindrome (342332323233243).

The spelling of 121210211221122 in words is "one hundred twenty-one trillion, two hundred ten billion, two hundred eleven million, two hundred twenty-one thousand, one hundred twenty-two".