212111911454772 has 192 divisors, whose sum is σ = 589207836672000. Its totient is φ = 58107153904128.

The previous prime is 212111911454767. The next prime is 212111911454783. The reversal of 212111911454772 is 277454119111212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 422426754 + ... + 422928582.

It is an arithmetic number, because the mean of its divisors is an integer number (3068790816000).

Almost surely, 2^{212111911454772} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212111911454772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (294603918336000).

212111911454772 is an abundant number, since it is smaller than the sum of its proper divisors (377095925217228).

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

212111911454772 is a wasteful number, since it uses less digits than its factorization.

212111911454772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503078 (or 503076 counting only the distinct ones).

The product of its digits is 282240, while the sum is 48.

The spelling of 212111911454772 in words is "two hundred twelve trillion, one hundred eleven billion, nine hundred eleven million, four hundred fifty-four thousand, seven hundred seventy-two".