1220101022 has 16 divisors (see below), whose sum is σ = 2131067232. Its totient is φ = 513034080.

The previous prime is 1220100997. The next prime is 1220101037. The reversal of 1220101022 is 2201010221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1220100994 and 1220101012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 821429 + ... + 822912.

It is an arithmetic number, because the mean of its divisors is an integer number (133191702).

Almost surely, 2^1220101022 is an apocalyptic number.

1220101022 is a deficient number, since it is larger than the sum of its proper divisors (910966210).

1220101022 is a wasteful number, since it uses less digits than its factorization.

1220101022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1644403.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1220101022 is about 34929.9444889338. The cubic root of 1220101022 is about 1068.5592225071.

Adding to 1220101022 its reverse (2201010221), we get a palindrome (3421111243).

The spelling of 1220101022 in words is "one billion, two hundred twenty million, one hundred one thousand, twenty-two".