12102121962 has 192 divisors, whose sum is σ = 31443130368. Its totient is φ = 3293136000.

The previous prime is 12102121951. The next prime is 12102121963. The reversal of 12102121962 is 26912120121.

It is a super-2 number, since 2×12102121962² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12102121963) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 36562137 + ... + 36562467.

It is an arithmetic number, because the mean of its divisors is an integer number (163766304).

Almost surely, 2^12102121962 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12102121962, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15721565184).

12102121962 is an abundant number, since it is smaller than the sum of its proper divisors (19341008406).

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

12102121962 is a wasteful number, since it uses less digits than its factorization.

12102121962 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545 (or 542 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The spelling of 12102121962 in words is "twelve billion, one hundred two million, one hundred twenty-one thousand, nine hundred sixty-two".