22021121101002 has 16 divisors (see below), whose sum is σ = 44042289567840. Its totient is φ = 7340365806032.

The previous prime is 22021121100991. The next prime is 22021121101009. The reversal of 22021121101002 is 20010112112022.

It is not an unprimeable number, because it can be changed into a prime (22021121101009) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 7772713 + ... + 10220435.

It is an arithmetic number, because the mean of its divisors is an integer number (2752643097990).

Almost surely, 2^{22021121101002} is an apocalyptic number.

22021121101002 is an abundant number, since it is smaller than the sum of its proper divisors (22021168466838).

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

22021121101002 is a wasteful number, since it uses less digits than its factorization.

22021121101002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3947157.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 22021121101002 its reverse (20010112112022), we get a palindrome (42031233213024).

The spelling of 22021121101002 in words is "twenty-two trillion, twenty-one billion, one hundred twenty-one million, one hundred one thousand, two".