201222100992 has 384 divisors, whose sum is σ = 634222068480. Its totient is φ = 56041144320.

The previous prime is 201222100969. The next prime is 201222101011. The reversal of 201222100992 is 299001222102.

It is a tau number, because it is divible by the number of its divisors (384).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49401868 + ... + 49405940.

It is an arithmetic number, because the mean of its divisors is an integer number (1651619970).

Almost surely, 2^201222100992 is an apocalyptic number.

201222100992 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201222100992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (317111034240).

201222100992 is an abundant number, since it is smaller than the sum of its proper divisors (432999967488).

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

201222100992 is a wasteful number, since it uses less digits than its factorization.

201222100992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4169 (or 4149 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The spelling of 201222100992 in words is "two hundred one billion, two hundred twenty-two million, one hundred thousand, nine hundred ninety-two".