222152403421 has 16 divisors (see below), whose sum is σ = 253815654400. Its totient is φ = 192741208128.

The previous prime is 222152403413. The next prime is 222152403433. The reversal of 222152403421 is 124304251222.

It is not a de Polignac number, because 222152403421 - 2³ = 222152403413 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 222152403421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222152403491) 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, 3509586 + ... + 3572323.

It is an arithmetic number, because the mean of its divisors is an integer number (15863478400).

Almost surely, 2^222152403421 is an apocalyptic number.

It is an amenable number.

222152403421 is a deficient number, since it is larger than the sum of its proper divisors (31663250979).

222152403421 is a wasteful number, since it uses less digits than its factorization.

222152403421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7082068.

The product of its (nonzero) digits is 7680, while the sum is 28.

Adding to 222152403421 its reverse (124304251222), we get a palindrome (346456654643).

The spelling of 222152403421 in words is "two hundred twenty-two billion, one hundred fifty-two million, four hundred three thousand, four hundred twenty-one".