49221220022021 has 4 divisors (see below), whose sum is σ = 49223372168544. Its totient is φ = 49219067875500.

The previous prime is 49221220021991. The next prime is 49221220022027. The reversal of 49221220022021 is 12022002212294.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 49221220022021 - 2¹⁰ = 49221220020997 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 (49221220022027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1076038955 + ... + 1076084696.

It is an arithmetic number, because the mean of its divisors is an integer number (12305843042136).

Almost surely, 2^{49221220022021} is an apocalyptic number.

It is an amenable number.

49221220022021 is a deficient number, since it is larger than the sum of its proper divisors (2152146523).

49221220022021 is a wasteful number, since it uses less digits than its factorization.

49221220022021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2152146522.

The product of its (nonzero) digits is 4608, while the sum is 29.

The spelling of 49221220022021 in words is "forty-nine trillion, two hundred twenty-one billion, two hundred twenty million, twenty-two thousand, twenty-one".