22021221211010 has 64 divisors (see below), whose sum is σ = 46069805272320. Its totient is φ = 7422106878720.

The previous prime is 22021221211009. The next prime is 22021221211049. The reversal of 22021221211010 is 1011212212022.

It is a self number, because there is not a number n which added to its sum of digits gives 22021221211010.

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 31 ways as a sum of consecutive naturals, for example, 5983676 + ... + 8935704.

It is an arithmetic number, because the mean of its divisors is an integer number (719840707380).

Almost surely, 2^{22021221211010} is an apocalyptic number.

22021221211010 is an abundant number, since it is smaller than the sum of its proper divisors (24048584061310).

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

22021221211010 is a wasteful number, since it uses less digits than its factorization.

22021221211010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2953851.

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

Adding to 22021221211010 its reverse (1011212212022), we get a palindrome (23032433423032).

The spelling of 22021221211010 in words is "twenty-two trillion, twenty-one billion, two hundred twenty-one million, two hundred eleven thousand, ten".