202011111212112 has 50 divisors (see below), whose sum is σ = 584678764013498. Its totient is φ = 67337037070272.

The previous prime is 202011111212111. The next prime is 202011111212177. The reversal of 202011111212112 is 211212111110202.

It is a happy number.

202011111212112 is a `hidden beast` number, since 20 + 201 + 111 + 121 + 211 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 177922411627536 + 24088699584576 = 13338756^2 + 4908024^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202011111212111) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 77936384203 + ... + 77936386794.

Almost surely, 2^{202011111212112} is an apocalyptic number.

It is an amenable number.

202011111212112 is an abundant number, since it is smaller than the sum of its proper divisors (382667652801386).

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

202011111212112 is a wasteful number, since it uses less digits than its factorization.

202011111212112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155872771017 (or 155872771002 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 202011111212112 its reverse (211212111110202), we get a palindrome (413223222322314).

The spelling of 202011111212112 in words is "two hundred two trillion, eleven billion, one hundred eleven million, two hundred twelve thousand, one hundred twelve".