20222213551 has 8 divisors (see below), whose sum is σ = 21295975680. Its totient is φ = 19149394968.

The previous prime is 20222213549. The next prime is 20222213563. The reversal of 20222213551 is 15531222202.

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 20222213551 - 2¹ = 20222213549 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 (20222210551) 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, 191671 + ... + 277816.

It is an arithmetic number, because the mean of its divisors is an integer number (2661996960).

Almost surely, 2^20222213551 is an apocalyptic number.

20222213551 is a deficient number, since it is larger than the sum of its proper divisors (1073762129).

20222213551 is a wasteful number, since it uses less digits than its factorization.

20222213551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471773.

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 20222213551 its reverse (15531222202), we get a palindrome (35753435753).

The spelling of 20222213551 in words is "twenty billion, two hundred twenty-two million, two hundred thirteen thousand, five hundred fifty-one".