121012211221122 has 16 divisors (see below), whose sum is σ = 260641685707200. Its totient is φ = 37234526529552.

The previous prime is 121012211221091. The next prime is 121012211221127. The reversal of 121012211221122 is 221122112210121.

It is not an unprimeable number, because it can be changed into a prime (121012211221127) 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, 775719302622 + ... + 775719302777.

It is an arithmetic number, because the mean of its divisors is an integer number (16290105356700).

Almost surely, 2^{121012211221122} is an apocalyptic number.

121012211221122 is an abundant number, since it is smaller than the sum of its proper divisors (139629474486078).

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

121012211221122 is a wasteful number, since it uses less digits than its factorization.

121012211221122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1551438605417.

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

Adding to 121012211221122 its reverse (221122112210121), we get a palindrome (342134323431243).

The spelling of 121012211221122 in words is "one hundred twenty-one trillion, twelve billion, two hundred eleven million, two hundred twenty-one thousand, one hundred twenty-two".