212222554092 has 144 divisors (see below), whose sum is σ = 562522326912. Its totient is φ = 69954606720.

The previous prime is 212222554021. The next prime is 212222554121. The reversal of 212222554092 is 290455222212.

212222554092 is a `hidden beast` number, since 2 + 1 + 2 + 2 + 2 + 25 + 540 + 92 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 71865288 + ... + 71868240.

It is an arithmetic number, because the mean of its divisors is an integer number (3906405048).

Almost surely, 2^212222554092 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 212222554092, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (281261163456).

212222554092 is an abundant number, since it is smaller than the sum of its proper divisors (350299772820).

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

212222554092 is a wasteful number, since it uses less digits than its factorization.

212222554092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3770 (or 3756 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The spelling of 212222554092 in words is "two hundred twelve billion, two hundred twenty-two million, five hundred fifty-four thousand, ninety-two".