212961029892 has 96 divisors (see below), whose sum is σ = 540198554112. Its totient is φ = 64906899456.

The previous prime is 212961029891. The next prime is 212961029923. The reversal of 212961029892 is 298920169212.

It is a super-2 number, since 2×212961029892² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212961029891) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43133248 + ... + 43138184.

It is an arithmetic number, because the mean of its divisors is an integer number (5627068272).

Almost surely, 2^212961029892 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212961029892, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (270099277056).

212961029892 is an abundant number, since it is smaller than the sum of its proper divisors (327237524220).

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

212961029892 is a wasteful number, since it uses less digits than its factorization.

212961029892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7517 (or 7515 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 51.

The spelling of 212961029892 in words is "two hundred twelve billion, nine hundred sixty-one million, twenty-nine thousand, eight hundred ninety-two".