121211432130102 has 16 divisors (see below), whose sum is σ = 247580797542912. Its totient is φ = 39544155162920.

The previous prime is 121211432130091. The next prime is 121211432130161. The reversal of 121211432130102 is 201031234112121.

It is a super-2 number, since 2×121211432130102² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214913886474 + ... + 214913887037.

It is an arithmetic number, because the mean of its divisors is an integer number (15473799846432).

Almost surely, 2^{121211432130102} is an apocalyptic number.

121211432130102 is an abundant number, since it is smaller than the sum of its proper divisors (126369365412810).

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

121211432130102 is a wasteful number, since it uses less digits than its factorization.

121211432130102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429827773563.

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

Adding to 121211432130102 its reverse (201031234112121), we get a palindrome (322242666242223).

The spelling of 121211432130102 in words is "one hundred twenty-one trillion, two hundred eleven billion, four hundred thirty-two million, one hundred thirty thousand, one hundred two".