1211213232102 has 48 divisors (see below), whose sum is σ = 2533124498688. Its totient is φ = 386062556880.

The previous prime is 1211213232091. The next prime is 1211213232121. The reversal of 1211213232102 is 2012323121121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10323823 + ... + 10440485.

It is an arithmetic number, because the mean of its divisors is an integer number (52773427056).

Almost surely, 2^{1211213232102} is an apocalyptic number.

1211213232102 is an abundant number, since it is smaller than the sum of its proper divisors (1321911266586).

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

1211213232102 is a wasteful number, since it uses less digits than its factorization.

1211213232102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119985 (or 119962 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 1211213232102 its reverse (2012323121121), we get a palindrome (3223536353223).

The spelling of 1211213232102 in words is "one trillion, two hundred eleven billion, two hundred thirteen million, two hundred thirty-two thousand, one hundred two".