212021031294 has 24 divisors (see below), whose sum is σ = 470062133112. Its totient is φ = 69030102960.

The previous prime is 212021031241. The next prime is 212021031359. The reversal of 212021031294 is 492130120212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 136963717 + ... + 136965264.

It is an arithmetic number, because the mean of its divisors is an integer number (19585922213).

Almost surely, 2^212021031294 is an apocalyptic number.

212021031294 is an abundant number, since it is smaller than the sum of its proper divisors (258041101818).

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

212021031294 is a wasteful number, since it uses less digits than its factorization.

212021031294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273929032 (or 273929029 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The spelling of 212021031294 in words is "two hundred twelve billion, twenty-one million, thirty-one thousand, two hundred ninety-four".