101000221221021 has 64 divisors (see below), whose sum is σ = 145968108797952. Its totient is φ = 61989909120000.

The previous prime is 101000221220981. The next prime is 101000221221037. The reversal of 101000221221021 is 120122122000101.

It is not a de Polignac number, because 101000221221021 - 2¹⁵ = 101000221188253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101000221221091) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 47526361 + ... + 49606001.

It is an arithmetic number, because the mean of its divisors is an integer number (2280751699968).

Almost surely, 2^{101000221221021} is an apocalyptic number.

It is an amenable number.

101000221221021 is a deficient number, since it is larger than the sum of its proper divisors (44967887576931).

101000221221021 is a wasteful number, since it uses less digits than its factorization.

101000221221021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2080034.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 101000221221021 its reverse (120122122000101), we get a palindrome (221122343221122).

The spelling of 101000221221021 in words is "one hundred one trillion, two hundred twenty-one million, two hundred twenty-one thousand, twenty-one".