221222020092 has 24 divisors (see below), whose sum is σ = 530135652816. Its totient is φ = 71747682048.

The previous prime is 221222020091. The next prime is 221222020099. The reversal of 221222020092 is 290020222122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221222020091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 249123453 + ... + 249124340.

It is an arithmetic number, because the mean of its divisors is an integer number (22088985534).

Almost surely, 2^221222020092 is an apocalyptic number.

It is an amenable number.

221222020092 is an abundant number, since it is smaller than the sum of its proper divisors (308913632724).

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

221222020092 is a wasteful number, since it uses less digits than its factorization.

221222020092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498247837 (or 498247835 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The spelling of 221222020092 in words is "two hundred twenty-one billion, two hundred twenty-two million, twenty thousand, ninety-two".