1222423266021 has 16 divisors (see below), whose sum is σ = 1674002341440. Its totient is φ = 793037427840.

The previous prime is 1222423266007. The next prime is 1222423266023. The reversal of 1222423266021 is 1206623242221.

It is not a de Polignac number, because 1222423266021 - 2⁷ = 1222423265893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222423266023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17578960 + ... + 17648361.

It is an arithmetic number, because the mean of its divisors is an integer number (104625146340).

Almost surely, 2^{1222423266021} is an apocalyptic number.

It is an amenable number.

1222423266021 is a deficient number, since it is larger than the sum of its proper divisors (451579075419).

1222423266021 is a wasteful number, since it uses less digits than its factorization.

1222423266021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35227636.

The product of its (nonzero) digits is 27648, while the sum is 33.

The spelling of 1222423266021 in words is "one trillion, two hundred twenty-two billion, four hundred twenty-three million, two hundred sixty-six thousand, twenty-one".