21202000102218 has 32 divisors (see below), whose sum is σ = 48069311976000. Its totient is φ = 6180340110336.

The previous prime is 21202000102211. The next prime is 21202000102243. The reversal of 21202000102218 is 81220100020212.

It is a junction number, because it is equal to n+sod(n) for n = 21202000102194 and 21202000102203.

It is not an unprimeable number, because it can be changed into a prime (21202000102211) 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, 7153169943 + ... + 7153172906.

It is an arithmetic number, because the mean of its divisors is an integer number (1502165999250).

Almost surely, 2^{21202000102218} is an apocalyptic number.

21202000102218 is an abundant number, since it is smaller than the sum of its proper divisors (26867311873782).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21202000102218 is a wasteful number, since it uses less digits than its factorization.

21202000102218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14306342886.

The product of its (nonzero) digits is 256, while the sum is 21.

The spelling of 21202000102218 in words is "twenty-one trillion, two hundred two billion, one hundred two thousand, two hundred eighteen".