10021012220021 has 8 divisors (see below), whose sum is σ = 10934391461664. Its totient is φ = 9108029333520.

The previous prime is 10021012219961. The next prime is 10021012220047. The reversal of 10021012220021 is 12002221012001.

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-10021012220021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10021012219978 and 10021012220005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021012250021) 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, 99035915 + ... + 99137048.

It is an arithmetic number, because the mean of its divisors is an integer number (1366798932708).

Almost surely, 2^{10021012220021} is an apocalyptic number.

10021012220021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10021012220021 is a deficient number, since it is larger than the sum of its proper divisors (913379241643).

10021012220021 is a wasteful number, since it uses less digits than its factorization.

10021012220021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198177571.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 10021012220021 its reverse (12002221012001), we get a palindrome (22023233232022).

The spelling of 10021012220021 in words is "ten trillion, twenty-one billion, twelve million, two hundred twenty thousand, twenty-one".