22211111021000 has 96 divisors (see below), whose sum is σ = 57128446360440. Its totient is φ = 8076767600000.

The previous prime is 22211111020997. The next prime is 22211111021093. The reversal of 22211111021000 is 12011111222.

It can be written as a sum of positive squares in 4 ways, for example, as 8259197749924 + 13951913271076 = 2873882^2 + 3735226^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 91660451 + ... + 91902450.

Almost surely, 2^{22211111021000} is an apocalyptic number.

22211111021000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22211111021000 is an abundant number, since it is smaller than the sum of its proper divisors (34917335339440).

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

22211111021000 is a wasteful number, since it uses less digits than its factorization.

22211111021000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183562944 (or 183562919 counting only the distinct ones).

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

Adding to 22211111021000 its reverse (12011111222), we get a palindrome (22223122132222).

The spelling of 22211111021000 in words is "twenty-two trillion, two hundred eleven billion, one hundred eleven million, twenty-one thousand".