201121011210 has 32 divisors (see below), whose sum is σ = 551646202752. Its totient is φ = 45970516800.

The previous prime is 201121011199. The next prime is 201121011251. The reversal of 201121011210 is 12110121102.

It is a super-2 number, since 2×201121011210² (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 15 ways as a sum of consecutive naturals, for example, 478859341 + ... + 478859760.

It is an arithmetic number, because the mean of its divisors is an integer number (17238943836).

Almost surely, 2^201121011210 is an apocalyptic number.

201121011210 is an abundant number, since it is smaller than the sum of its proper divisors (350525191542).

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

201121011210 is a wasteful number, since it uses less digits than its factorization.

201121011210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 957719118.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 201121011210 its reverse (12110121102), we get a palindrome (213231132312).

The spelling of 201121011210 in words is "two hundred one billion, one hundred twenty-one million, eleven thousand, two hundred ten".