21222302219970 has 128 divisors (see below), whose sum is σ = 52526295244800. Its totient is φ = 5485107936000.

The previous prime is 21222302219969. The next prime is 21222302219981. The reversal of 21222302219970 is 7991220322212.

It is a super-2 number, since 2×21222302219970² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 243055381 + ... + 243142679.

It is an arithmetic number, because the mean of its divisors is an integer number (410361681600).

Almost surely, 2^{21222302219970} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21222302219970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26263147622400).

21222302219970 is an abundant number, since it is smaller than the sum of its proper divisors (31303993024830).

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

21222302219970 is a wasteful number, since it uses less digits than its factorization.

21222302219970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89312.

The product of its (nonzero) digits is 108864, while the sum is 42.

The spelling of 21222302219970 in words is "twenty-one trillion, two hundred twenty-two billion, three hundred two million, two hundred nineteen thousand, nine hundred seventy".