101221214064 has 80 divisors (see below), whose sum is σ = 263170477440. Its totient is φ = 33523936000.

The previous prime is 101221214051. The next prime is 101221214077. The reversal of 101221214064 is 460412122101.

It is an interprime number because it is at equal distance from previous prime (101221214051) and next prime (101221214077).

It is a super-2 number, since 2×101221214064² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5536939 + ... + 5555189.

It is an arithmetic number, because the mean of its divisors is an integer number (3289630968).

Almost surely, 2^101221214064 is an apocalyptic number.

It is an amenable number.

101221214064 is an abundant number, since it is smaller than the sum of its proper divisors (161949263376).

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

101221214064 is a wasteful number, since it uses less digits than its factorization.

101221214064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18998 (or 18992 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 101221214064 its reverse (460412122101), we get a palindrome (561633336165).

The spelling of 101221214064 in words is "one hundred one billion, two hundred twenty-one million, two hundred fourteen thousand, sixty-four".