20022022101221 has 8 divisors (see below), whose sum is σ = 22883376379584. Its totient is φ = 17160934174560.

The previous prime is 20022022101217. The next prime is 20022022101239. The reversal of 20022022101221 is 12210122022002.

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 20022022101221 - 2² = 20022022101217 is a prime.

It is a super-4 number, since 4×20022022101221⁴ (a number of 54 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20022022101221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20022022101241) 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, 66426815 + ... + 66727548.

It is an arithmetic number, because the mean of its divisors is an integer number (2860422047448).

Almost surely, 2^{20022022101221} is an apocalyptic number.

It is an amenable number.

20022022101221 is a deficient number, since it is larger than the sum of its proper divisors (2861354278363).

20022022101221 is a wasteful number, since it uses less digits than its factorization.

20022022101221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133175851.

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

Adding to 20022022101221 its reverse (12210122022002), we get a palindrome (32232144123223).

The spelling of 20022022101221 in words is "twenty trillion, twenty-two billion, twenty-two million, one hundred one thousand, two hundred twenty-one".