1002220121022 has 64 divisors (see below), whose sum is σ = 2211329030400. Its totient is φ = 301395709440.

The previous prime is 1002220121017. The next prime is 1002220121027. The reversal of 1002220121022 is 2201210222001.

It is an interprime number because it is at equal distance from previous prime (1002220121017) and next prime (1002220121027).

It is a junction number, because it is equal to n+sod(n) for n = 1002220120992 and 1002220121010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002220121027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 807604 + ... + 1629927.

It is an arithmetic number, because the mean of its divisors is an integer number (34552016100).

Almost surely, 2^{1002220121022} is an apocalyptic number.

1002220121022 is an abundant number, since it is smaller than the sum of its proper divisors (1209108909378).

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

1002220121022 is a wasteful number, since it uses less digits than its factorization.

1002220121022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2437721.

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

Adding to 1002220121022 its reverse (2201210222001), we get a palindrome (3203430343023).

The spelling of 1002220121022 in words is "one trillion, two billion, two hundred twenty million, one hundred twenty-one thousand, twenty-two".