1220021232222 has 32 divisors (see below), whose sum is σ = 2631293965440. Its totient is φ = 374883158880.

The previous prime is 1220021232211. The next prime is 1220021232233. The reversal of 1220021232222 is 2222321200221.

It is an interprime number because it is at equal distance from previous prime (1220021232211) and next prime (1220021232233).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10525104 + ... + 10640387.

It is an arithmetic number, because the mean of its divisors is an integer number (82227936420).

Almost surely, 2^{1220021232222} is an apocalyptic number.

1220021232222 is an abundant number, since it is smaller than the sum of its proper divisors (1411272733218).

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

1220021232222 is a wasteful number, since it uses less digits than its factorization.

1220021232222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21166248.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 1220021232222 its reverse (2222321200221), we get a palindrome (3442342432443).

The spelling of 1220021232222 in words is "one trillion, two hundred twenty billion, twenty-one million, two hundred thirty-two thousand, two hundred twenty-two".