21027374748222 has 16 divisors (see below), whose sum is σ = 42055013298432. Its totient is φ = 7009080949080.

The previous prime is 21027374748221. The next prime is 21027374748253. The reversal of 21027374748222 is 22284747372012.

It is a super-2 number, since 2×21027374748222² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21027374748221) 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, 9947908 + ... + 11874999.

It is an arithmetic number, because the mean of its divisors is an integer number (2628438331152).

Almost surely, 2^{21027374748222} is an apocalyptic number.

21027374748222 is an abundant number, since it is smaller than the sum of its proper divisors (21027638550210).

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

21027374748222 is a wasteful number, since it uses less digits than its factorization.

21027374748222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21983503.

The product of its (nonzero) digits is 4214784, while the sum is 51.

The spelling of 21027374748222 in words is "twenty-one trillion, twenty-seven billion, three hundred seventy-four million, seven hundred forty-eight thousand, two hundred twenty-two".