102211001021 has 8 divisors (see below), whose sum is σ = 103194854400. Its totient is φ = 101231822160.

The previous prime is 102211000999. The next prime is 102211001023. The reversal of 102211001021 is 120100112201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102211001021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102211000993 and 102211001011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102211001023) 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, 1124681 + ... + 1212158.

It is an arithmetic number, because the mean of its divisors is an integer number (12899356800).

Almost surely, 2^102211001021 is an apocalyptic number.

It is an amenable number.

102211001021 is a deficient number, since it is larger than the sum of its proper divisors (983853379).

102211001021 is a wasteful number, since it uses less digits than its factorization.

102211001021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2337259.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 102211001021 its reverse (120100112201), we get a palindrome (222311113222).

The spelling of 102211001021 in words is "one hundred two billion, two hundred eleven million, one thousand, twenty-one".