20010033321222 has 16 divisors (see below), whose sum is σ = 45737219020032. Its totient is φ = 5717152377480.

The previous prime is 20010033321193. The next prime is 20010033321263. The reversal of 20010033321222 is 22212333001002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 238214682354 + ... + 238214682437.

It is an arithmetic number, because the mean of its divisors is an integer number (2858576188752).

Almost surely, 2^{20010033321222} is an apocalyptic number.

20010033321222 is an abundant number, since it is smaller than the sum of its proper divisors (25727185698810).

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

20010033321222 is a wasteful number, since it uses less digits than its factorization.

20010033321222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476429364803.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 20010033321222 its reverse (22212333001002), we get a palindrome (42222366322224).

The spelling of 20010033321222 in words is "twenty trillion, ten billion, thirty-three million, three hundred twenty-one thousand, two hundred twenty-two".