210771226140 has 48 divisors (see below), whose sum is σ = 624874696992. Its totient is φ = 52899444736.

The previous prime is 210771226033. The next prime is 210771226153. The reversal of 210771226140 is 41622177012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103318209 + ... + 103320248.

It is an arithmetic number, because the mean of its divisors is an integer number (13018222854).

Almost surely, 2^210771226140 is an apocalyptic number.

210771226140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210771226140 is an abundant number, since it is smaller than the sum of its proper divisors (414103470852).

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

210771226140 is a wasteful number, since it uses less digits than its factorization.

210771226140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206638486 (or 206638484 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 33.

The spelling of 210771226140 in words is "two hundred ten billion, seven hundred seventy-one million, two hundred twenty-six thousand, one hundred forty".