1000022211120 has 80 divisors (see below), whose sum is σ = 3100314781440. Its totient is φ = 266651434752.

The previous prime is 1000022211119. The next prime is 1000022211131. The reversal of 1000022211120 is 211122200001.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1000022211096 and 1000022211105.

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, 2991771 + ... + 3309189.

It is an arithmetic number, because the mean of its divisors is an integer number (38753934768).

Almost surely, 2^{1000022211120} is an apocalyptic number.

1000022211120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000022211120 is an abundant number, since it is smaller than the sum of its proper divisors (2100292570320).

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

1000022211120 is a wasteful number, since it uses less digits than its factorization.

1000022211120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330562 (or 330556 counting only the distinct ones).

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

Adding to 1000022211120 its reverse (211122200001), we get a palindrome (1211144411121).

The spelling of 1000022211120 in words is "one trillion, twenty-two million, two hundred eleven thousand, one hundred twenty".