851026212 has 36 divisors (see below), whose sum is σ = 2171319696. Its totient is φ = 281022960.

The previous prime is 851026177. The next prime is 851026219. The reversal of 851026212 is 212620158.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×851026212² = 1448491227022137888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (851026219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 106614 + ... + 114317.

It is an arithmetic number, because the mean of its divisors is an integer number (60314436).

Almost surely, 2^851026212 is an apocalyptic number.

It is an amenable number.

851026212 is an abundant number, since it is smaller than the sum of its proper divisors (1320293484).

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

851026212 is a wasteful number, since it uses less digits than its factorization.

851026212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221048 (or 221043 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 851026212 is about 29172.3535560640. The cubic root of 851026212 is about 947.6492987887.

The spelling of 851026212 in words is "eight hundred fifty-one million, twenty-six thousand, two hundred twelve".