20220022212121 has 8 divisors (see below), whose sum is σ = 21102493823424. Its totient is φ = 19337828951760.

The previous prime is 20220022212113. The next prime is 20220022212197. The reversal of 20220022212121 is 12121222002202.

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 20220022212121 - 2³ = 20220022212113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20220022212421) 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, 69439275 + ... + 69729856.

It is an arithmetic number, because the mean of its divisors is an integer number (2637811727928).

Almost surely, 2^{20220022212121} is an apocalyptic number.

It is an amenable number.

20220022212121 is a deficient number, since it is larger than the sum of its proper divisors (882471611303).

20220022212121 is a wasteful number, since it uses less digits than its factorization.

20220022212121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139175471.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 20220022212121 its reverse (12121222002202), we get a palindrome (32341244214323).

The spelling of 20220022212121 in words is "twenty trillion, two hundred twenty billion, twenty-two million, two hundred twelve thousand, one hundred twenty-one".