1011120021122 has 4 divisors (see below), whose sum is σ = 1516680031686. Its totient is φ = 505560010560.

The previous prime is 1011120021029. The next prime is 1011120021169. The reversal of 1011120021122 is 2211200211101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 801402734521 + 209717286601 = 895211^2 + 457949^2 .

It is a super-2 number, since 2×1011120021122² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1011120021097 and 1011120021106.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252780005279 + ... + 252780005282.

Almost surely, 2^{1011120021122} is an apocalyptic number.

1011120021122 is a deficient number, since it is larger than the sum of its proper divisors (505560010564).

1011120021122 is an equidigital number, since it uses as much as digits as its factorization.

1011120021122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505560010563.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1011120021122 its reverse (2211200211101), we get a palindrome (3222320232223).

The spelling of 1011120021122 in words is "one trillion, eleven billion, one hundred twenty million, twenty-one thousand, one hundred twenty-two".