21229200902239 has 16 divisors (see below), whose sum is σ = 24120051388416. Its totient is φ = 18513197287200.

The previous prime is 21229200902201. The next prime is 21229200902257. The reversal of 21229200902239 is 93220900292212.

It is not a de Polignac number, because 21229200902239 - 2¹³ = 21229200894047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21229200902195 and 21229200902204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21229200902839) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 367296447 + ... + 367354240.

It is an arithmetic number, because the mean of its divisors is an integer number (1507503211776).

Almost surely, 2^{21229200902239} is an apocalyptic number.

21229200902239 is a deficient number, since it is larger than the sum of its proper divisors (2890850486177).

21229200902239 is a wasteful number, since it uses less digits than its factorization.

21229200902239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734650806.

The product of its (nonzero) digits is 139968, while the sum is 43.

The spelling of 21229200902239 in words is "twenty-one trillion, two hundred twenty-nine billion, two hundred million, nine hundred two thousand, two hundred thirty-nine".