121213132121202 has 256 divisors, whose sum is σ = 273144211554816. Its totient is φ = 35552010240000.

The previous prime is 121213132121201. The next prime is 121213132121203. The reversal of 121213132121202 is 202121231312121.

It is an interprime number because it is at equal distance from previous prime (121213132121201) and next prime (121213132121203).

It is not an unprimeable number, because it can be changed into a prime (121213132121201) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 65133331752 + ... + 65133333612.

It is an arithmetic number, because the mean of its divisors is an integer number (1066969576386).

Almost surely, 2^{121213132121202} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121213132121202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136572105777408).

121213132121202 is an abundant number, since it is smaller than the sum of its proper divisors (151931079433614).

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

121213132121202 is a wasteful number, since it uses less digits than its factorization.

121213132121202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3165.

The product of its (nonzero) digits is 576, while the sum is 24.

Adding to 121213132121202 its reverse (202121231312121), we get a palindrome (323334363433323).

It can be divided in two parts, 1212131 and 32121202, that added together give a palindrome (33333333).

The spelling of 121213132121202 in words is "one hundred twenty-one trillion, two hundred thirteen billion, one hundred thirty-two million, one hundred twenty-one thousand, two hundred two".