1011021220122 has 8 divisors (see below), whose sum is σ = 2022042440256. Its totient is φ = 337007073372.

The previous prime is 1011021220067. The next prime is 1011021220123. The reversal of 1011021220122 is 2210221201101.

It is a sphenic number, since it is the product of 3 distinct primes.

1011021220122 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1011021220123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84251768338 + ... + 84251768349.

It is an arithmetic number, because the mean of its divisors is an integer number (252755305032).

Almost surely, 2^{1011021220122} is an apocalyptic number.

1011021220122 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1011021220122 is a wasteful number, since it uses less digits than its factorization.

1011021220122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168503536692.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1011021220122 its reverse (2210221201101), we get a palindrome (3221242421223).

The spelling of 1011021220122 in words is "one trillion, eleven billion, twenty-one million, two hundred twenty thousand, one hundred twenty-two".