1021120122 has 32 divisors (see below), whose sum is σ = 2237921280. Its totient is φ = 308038320.

The previous prime is 1021120103. The next prime is 1021120159. The reversal of 1021120122 is 2210211201.

It is a junction number, because it is equal to n+sod(n) for n = 1021120098 and 1021120107.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19972 + ... + 49407.

It is an arithmetic number, because the mean of its divisors is an integer number (69935040).

Almost surely, 2^1021120122 is an apocalyptic number.

1021120122 is an abundant number, since it is smaller than the sum of its proper divisors (1216801158).

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

1021120122 is a wasteful number, since it uses less digits than its factorization.

1021120122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69618.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 1021120122 is about 31954.9702237383. The cubic root of 1021120122 is about 1006.9910519637.

Adding to 1021120122 its reverse (2210211201), we get a palindrome (3231331323).

It can be divided in two parts, 10211201 and 22, that multiplied together give a palindrome (224646422).

The spelling of 1021120122 in words is "one billion, twenty-one million, one hundred twenty thousand, one hundred twenty-two".