2021200121112 has 64 divisors (see below), whose sum is σ = 5160901824000. Its totient is φ = 659348676480.

The previous prime is 2021200121081. The next prime is 2021200121123. The reversal of 2021200121112 is 2111210021202.

It is a junction number, because it is equal to n+sod(n) for n = 2021200121091 and 2021200121100.

It is a congruent number.

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, 16657639 + ... + 16778537.

It is an arithmetic number, because the mean of its divisors is an integer number (80639091000).

Almost surely, 2^{2021200121112} is an apocalyptic number.

It is an amenable number.

2021200121112 is an abundant number, since it is smaller than the sum of its proper divisors (3139701702888).

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

2021200121112 is a wasteful number, since it uses less digits than its factorization.

2021200121112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135776 (or 135772 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2021200121112 its reverse (2111210021202), we get a palindrome (4132410142314).

The spelling of 2021200121112 in words is "two trillion, twenty-one billion, two hundred million, one hundred twenty-one thousand, one hundred twelve".