20211222112010 has 8 divisors (see below), whose sum is σ = 36380199801636. Its totient is φ = 8084488844800.

The previous prime is 20211222111973. The next prime is 20211222112033. The reversal of 20211222112010 is 1021122211202.

It can be written as a sum of positive squares in 2 ways, for example, as 17155658679721 + 3055563432289 = 4141939^2 + 1748017^2 .

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

It is a super-2 number, since 2×20211222112010² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20211222112010.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1010561105591 + ... + 1010561105610.

Almost surely, 2^{20211222112010} is an apocalyptic number.

20211222112010 is a deficient number, since it is larger than the sum of its proper divisors (16168977689626).

20211222112010 is a wasteful number, since it uses less digits than its factorization.

20211222112010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2021122211208.

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

Adding to 20211222112010 its reverse (1021122211202), we get a palindrome (21232344323212).

The spelling of 20211222112010 in words is "twenty trillion, two hundred eleven billion, two hundred twenty-two million, one hundred twelve thousand, ten".