121102222121202 has 16 divisors (see below), whose sum is σ = 276805079134272. Its totient is φ = 34600634891760.

The previous prime is 121102222121201. The next prime is 121102222121203. The reversal of 121102222121202 is 202121222201121.

It is an interprime number because it is at equal distance from previous prime (121102222121201) and next prime (121102222121203).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (121102222121201) 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, 1441693120449 + ... + 1441693120532.

It is an arithmetic number, because the mean of its divisors is an integer number (17300317445892).

Almost surely, 2^{121102222121202} is an apocalyptic number.

121102222121202 is an abundant number, since it is smaller than the sum of its proper divisors (155702857013070).

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

121102222121202 is a wasteful number, since it uses less digits than its factorization.

121102222121202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2883386240993.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 121102222121202 its reverse (202121222201121), we get a palindrome (323223444322323).

The spelling of 121102222121202 in words is "one hundred twenty-one trillion, one hundred two billion, two hundred twenty-two million, one hundred twenty-one thousand, two hundred two".