101222222021000 has 64 divisors (see below), whose sum is σ = 245027585790000. Its totient is φ = 39092720217600.

The previous prime is 101222222020991. The next prime is 101222222021147. The reversal of 101222222021000 is 120222222101.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1944792015364 + 99277430005636 = 1394558^2 + 9963806^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 101222222021000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1745181725 + ... + 1745239724.

Almost surely, 2^{101222222021000} is an apocalyptic number.

101222222021000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101222222021000 is an abundant number, since it is smaller than the sum of its proper divisors (143805363769000).

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

101222222021000 is a wasteful number, since it uses less digits than its factorization.

101222222021000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3490421499 (or 3490421485 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 101222222021000 its reverse (120222222101), we get a palindrome (101342444243101).

The spelling of 101222222021000 in words is "one hundred one trillion, two hundred twenty-two billion, two hundred twenty-two million, twenty-one thousand".