201121111202 has 32 divisors (see below), whose sum is σ = 332464328064. Its totient is φ = 90490608000.

The previous prime is 201121111189. The next prime is 201121111207. The reversal of 201121111202 is 202111121102.

It is a super-2 number, since 2×201121111202² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201121111207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 797702 + ... + 1019102.

It is an arithmetic number, because the mean of its divisors is an integer number (10389510252).

Almost surely, 2^201121111202 is an apocalyptic number.

201121111202 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

201121111202 is a deficient number, since it is larger than the sum of its proper divisors (131343216862).

201121111202 is a wasteful number, since it uses less digits than its factorization.

201121111202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221834.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 201121111202 its reverse (202111121102), we get a palindrome (403232232304).

The spelling of 201121111202 in words is "two hundred one billion, one hundred twenty-one million, one hundred eleven thousand, two hundred two".