210201121100 has 36 divisors (see below), whose sum is σ = 480143617800. Its totient is φ = 79655160960.

The previous prime is 210201121079. The next prime is 210201121121. The reversal of 210201121100 is 1121102012.

It is an interprime number because it is at equal distance from previous prime (210201121079) and next prime (210201121121).

It is a super-2 number, since 2×210201121100² (a number of 23 digits) contains 22 as substring.

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, 55314185 + ... + 55317984.

Almost surely, 2^210201121100 is an apocalyptic number.

210201121100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210201121100 is an abundant number, since it is smaller than the sum of its proper divisors (269942496700).

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

210201121100 is a wasteful number, since it uses less digits than its factorization.

210201121100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110632202 (or 110632195 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 210201121100 its reverse (1121102012), we get a palindrome (211322223112).

The spelling of 210201121100 in words is "two hundred ten billion, two hundred one million, one hundred twenty-one thousand, one hundred".