10111101202021 has 16 divisors (see below), whose sum is σ = 10711344208000. Its totient is φ = 9517797546048.

The previous prime is 10111101202019. The next prime is 10111101202049. The reversal of 10111101202021 is 12020210111101.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 10111101202021 - 2¹ = 10111101202019 is a prime.

It is a super-2 number, since 2×10111101202021² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10111101201992 and 10111101202010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10111101202001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 947335 + ... + 4595611.

It is an arithmetic number, because the mean of its divisors is an integer number (669459013000).

Almost surely, 2^{10111101202021} is an apocalyptic number.

It is an amenable number.

10111101202021 is a deficient number, since it is larger than the sum of its proper divisors (600243005979).

10111101202021 is a wasteful number, since it uses less digits than its factorization.

10111101202021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3649228.

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

Adding to 10111101202021 its reverse (12020210111101), we get a palindrome (22131311313122).

The spelling of 10111101202021 in words is "ten trillion, one hundred eleven billion, one hundred one million, two hundred two thousand, twenty-one".