1220101022222 has 32 divisors (see below), whose sum is σ = 1970472256704. Its totient is φ = 564495321600.

The previous prime is 1220101022219. The next prime is 1220101022243. The reversal of 1220101022222 is 2222201010221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 1220101022222.

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, 4456847 + ... + 4722677.

It is an arithmetic number, because the mean of its divisors is an integer number (61577258022).

Almost surely, 2^{1220101022222} is an apocalyptic number.

1220101022222 is a deficient number, since it is larger than the sum of its proper divisors (750371234482).

1220101022222 is a wasteful number, since it uses less digits than its factorization.

1220101022222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268124.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 1220101022222 its reverse (2222201010221), we get a palindrome (3442302032443).

The spelling of 1220101022222 in words is "one trillion, two hundred twenty billion, one hundred one million, twenty-two thousand, two hundred twenty-two".