22212021002021 has 8 divisors (see below), whose sum is σ = 22223442092544. Its totient is φ = 22200602611600.

The previous prime is 22212021001943. The next prime is 22212021002023. The reversal of 22212021002021 is 12020012021222.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 22212021002021 - 2¹⁰ = 22212021000997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22212021002023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15886196 + ... + 17227746.

It is an arithmetic number, because the mean of its divisors is an integer number (2777930261568).

Almost surely, 2^{22212021002021} is an apocalyptic number.

It is an amenable number.

22212021002021 is a deficient number, since it is larger than the sum of its proper divisors (11421090523).

22212021002021 is a wasteful number, since it uses less digits than its factorization.

22212021002021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1350051.

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

Adding to 22212021002021 its reverse (12020012021222), we get a palindrome (34232033023243).

It can be divided in two parts, 2221202 and 1002021, that added together give a palindrome (3223223).

The spelling of 22212021002021 in words is "twenty-two trillion, two hundred twelve billion, twenty-one million, two thousand, twenty-one".