1022211220120 has 32 divisors (see below), whose sum is σ = 2300339217600. Its totient is φ = 408819781888.

The previous prime is 1022211220111. The next prime is 1022211220193. The reversal of 1022211220120 is 210221122201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1022211220094 and 1022211220103.

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, 1765744 + ... + 2272063.

It is an arithmetic number, because the mean of its divisors is an integer number (71885600550).

Almost surely, 2^{1022211220120} is an apocalyptic number.

1022211220120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1022211220120 is an abundant number, since it is smaller than the sum of its proper divisors (1278127997480).

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

1022211220120 is a wasteful number, since it uses less digits than its factorization.

1022211220120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4044147 (or 4044143 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1022211220120 its reverse (210221122201), we get a palindrome (1232432342321).

The spelling of 1022211220120 in words is "one trillion, twenty-two billion, two hundred eleven million, two hundred twenty thousand, one hundred twenty".