1213121023292 has 12 divisors (see below), whose sum is σ = 2122971052440. Its totient is φ = 606557865456.

The previous prime is 1213121023277. The next prime is 1213121023297. The reversal of 1213121023292 is 2923201213121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213121023297) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 665903 + ... + 1694009.

It is an arithmetic number, because the mean of its divisors is an integer number (176914254370).

Almost surely, 2^{1213121023292} is an apocalyptic number.

It is an amenable number.

1213121023292 is a deficient number, since it is larger than the sum of its proper divisors (909850029148).

1213121023292 is a wasteful number, since it uses less digits than its factorization.

1213121023292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1323100 (or 1323098 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The spelling of 1213121023292 in words is "one trillion, two hundred thirteen billion, one hundred twenty-one million, twenty-three thousand, two hundred ninety-two".