1012122022220 has 48 divisors (see below), whose sum is σ = 2136412762848. Its totient is φ = 402764843520.

The previous prime is 1012122022211. The next prime is 1012122022229. The reversal of 1012122022220 is 222202212101.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1012122022211) and next prime (1012122022229).

It is not an unprimeable number, because it can be changed into a prime (1012122022229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5364122 + ... + 5549598.

It is an arithmetic number, because the mean of its divisors is an integer number (44508599226).

Almost surely, 2^{1012122022220} is an apocalyptic number.

1012122022220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1012122022220 is an abundant number, since it is smaller than the sum of its proper divisors (1124290740628).

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

1012122022220 is a wasteful number, since it uses less digits than its factorization.

1012122022220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186890 (or 186888 counting only the distinct ones).

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

Adding to 1012122022220 its reverse (222202212101), we get a palindrome (1234324234321).

The spelling of 1012122022220 in words is "one trillion, twelve billion, one hundred twenty-two million, twenty-two thousand, two hundred twenty".