1011222122120 has 32 divisors (see below), whose sum is σ = 2600285457600. Its totient is φ = 346704727488.

The previous prime is 1011222122117. The next prime is 1011222122123. The reversal of 1011222122120 is 212212221101.

It is an interprime number because it is at equal distance from previous prime (1011222122117) and next prime (1011222122123).

It is not an unprimeable number, because it can be changed into a prime (1011222122123) 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, 1805753510 + ... + 1805754069.

It is an arithmetic number, because the mean of its divisors is an integer number (81258920550).

Almost surely, 2^{1011222122120} is an apocalyptic number.

1011222122120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011222122120 is an abundant number, since it is smaller than the sum of its proper divisors (1589063335480).

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

1011222122120 is a wasteful number, since it uses less digits than its factorization.

1011222122120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3611507597 (or 3611507593 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1011222122120 its reverse (212212221101), we get a palindrome (1223434343221).

The spelling of 1011222122120 in words is "one trillion, eleven billion, two hundred twenty-two million, one hundred twenty-two thousand, one hundred twenty".