21467222073236 has 12 divisors (see below), whose sum is σ = 37567679993760. Its totient is φ = 10733599217880.

The previous prime is 21467222073233. The next prime is 21467222073287. The reversal of 21467222073236 is 63237022276412.

It is a super-2 number, since 2×21467222073236² (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 (21467222073233) 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, 2088641 + ... + 6877271.

It is an arithmetic number, because the mean of its divisors is an integer number (3130639999480).

Almost surely, 2^{21467222073236} is an apocalyptic number.

It is an amenable number.

21467222073236 is a deficient number, since it is larger than the sum of its proper divisors (16100457920524).

21467222073236 is a wasteful number, since it uses less digits than its factorization.

21467222073236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5909374 (or 5909372 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 47.

The spelling of 21467222073236 in words is "twenty-one trillion, four hundred sixty-seven billion, two hundred twenty-two million, seventy-three thousand, two hundred thirty-six".