1220101220022 has 64 divisors (see below), whose sum is σ = 2553404249088. Its totient is φ = 388262816000.

The previous prime is 1220101220003. The next prime is 1220101220047. The reversal of 1220101220022 is 2200221010221.

It is a junction number, because it is equal to n+sod(n) for n = 1220101219983 and 1220101220010.

It is a congruent number.

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, 108341872 + ... + 108353132.

It is an arithmetic number, because the mean of its divisors is an integer number (39896941392).

Almost surely, 2^{1220101220022} is an apocalyptic number.

1220101220022 is an abundant number, since it is smaller than the sum of its proper divisors (1333303029066).

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

1220101220022 is a wasteful number, since it uses less digits than its factorization.

1220101220022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20725.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 1220101220022 its reverse (2200221010221), we get a palindrome (3420322230243).

The spelling of 1220101220022 in words is "one trillion, two hundred twenty billion, one hundred one million, two hundred twenty thousand, twenty-two".