221222210021202 has 64 divisors (see below), whose sum is σ = 490922790059520. Its totient is φ = 66030550462464.

The previous prime is 221222210021161. The next prime is 221222210021221. The reversal of 221222210021202 is 202120012222122.

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, 266595927 + ... + 267424442.

It is an arithmetic number, because the mean of its divisors is an integer number (7670668594680).

Almost surely, 2^{221222210021202} is an apocalyptic number.

221222210021202 is an abundant number, since it is smaller than the sum of its proper divisors (269700580038318).

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

221222210021202 is a wasteful number, since it uses less digits than its factorization.

221222210021202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534020547.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 221222210021202 its reverse (202120012222122), we get a palindrome (423342222243324).

The spelling of 221222210021202 in words is "two hundred twenty-one trillion, two hundred twenty-two billion, two hundred ten million, twenty-one thousand, two hundred two".