1121020122 has 16 divisors (see below), whose sum is σ = 2250767232. Its totient is φ = 372218880.

The previous prime is 1121020093. The next prime is 1121020129. The reversal of 1121020122 is 2210201211.

It is a super-2 number, since 2×1121020122² = 2513372227857789768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1121020098 and 1121020107.

It is not an unprimeable number, because it can be changed into a prime (1121020129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 361954 + ... + 365037.

It is an arithmetic number, because the mean of its divisors is an integer number (140672952).

Almost surely, 2^1121020122 is an apocalyptic number.

1121020122 is an abundant number, since it is smaller than the sum of its proper divisors (1129747110).

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

1121020122 is a wasteful number, since it uses less digits than its factorization.

1121020122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727253.

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

The square root of 1121020122 is about 33481.6385799739. The cubic root of 1121020122 is about 1038.8140209701.

Adding to 1121020122 its reverse (2210201211), we get a palindrome (3331221333).

The spelling of 1121020122 in words is "one billion, one hundred twenty-one million, twenty thousand, one hundred twenty-two".