10202101111021 has 8 divisors (see below), whose sum is σ = 10225895925440. Its totient is φ = 10178312719968.

The previous prime is 10202101110979. The next prime is 10202101111051. The reversal of 10202101111021 is 12011110120201.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 10202101111021 - 2¹³ = 10202101102829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10202101110992 and 10202101111010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10202101111051) 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, 1581790 + ... + 4786048.

It is an arithmetic number, because the mean of its divisors is an integer number (1278236990680).

Almost surely, 2^{10202101111021} is an apocalyptic number.

It is an amenable number.

10202101111021 is a deficient number, since it is larger than the sum of its proper divisors (23794814419).

10202101111021 is an equidigital number, since it uses as much as digits as its factorization.

10202101111021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3211683.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 10202101111021 its reverse (12011110120201), we get a palindrome (22213211231222).

The spelling of 10202101111021 in words is "ten trillion, two hundred two billion, one hundred one million, one hundred eleven thousand, twenty-one".