201210957900 has 360 divisors, whose sum is σ = 695259313056. Its totient is φ = 50160384000.

The previous prime is 201210957887. The next prime is 201210957949. The reversal of 201210957900 is 9759012102.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 20787862 + ... + 20797538.

Almost surely, 2^201210957900 is an apocalyptic number.

201210957900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201210957900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (347629656528).

201210957900 is an abundant number, since it is smaller than the sum of its proper divisors (494048355156).

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

201210957900 is a wasteful number, since it uses less digits than its factorization.

201210957900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9871 (or 9855 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 36.

The spelling of 201210957900 in words is "two hundred one billion, two hundred ten million, nine hundred fifty-seven thousand, nine hundred".