1022201221122 has 20 divisors (see below), whose sum is σ = 2290487921766. Its totient is φ = 340733740320.

The previous prime is 1022201221057. The next prime is 1022201221201. The reversal of 1022201221122 is 2211221022201.

It is a happy number.

1022201221122 is a `hidden beast` number, since 102 + 220 + 1 + 221 + 122 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1021678229961 + 522991161 = 1010781^2 + 22869^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1022201221095 and 1022201221104.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 3154941879 + ... + 3154942202.

Almost surely, 2^{1022201221122} is an apocalyptic number.

1022201221122 is an abundant number, since it is smaller than the sum of its proper divisors (1268286700644).

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

1022201221122 is an equidigital number, since it uses as much as digits as its factorization.

1022201221122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6309884095 (or 6309884086 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 1022201221122 its reverse (2211221022201), we get a palindrome (3233422243323).

The spelling of 1022201221122 in words is "one trillion, twenty-two billion, two hundred one million, two hundred twenty-one thousand, one hundred twenty-two".