10102121222021 has 16 divisors (see below), whose sum is σ = 10598220251136. Its totient is φ = 9610840518576.

The previous prime is 10102121221981. The next prime is 10102121222041. The reversal of 10102121222021 is 12022212120101.

It is a cyclic number.

It is not a de Polignac number, because 10102121222021 - 2¹⁸ = 10102120959877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10102121222041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4764446 + ... + 6550128.

It is an arithmetic number, because the mean of its divisors is an integer number (662388765696).

Almost surely, 2^{10102121222021} is an apocalyptic number.

It is an amenable number.

10102121222021 is a deficient number, since it is larger than the sum of its proper divisors (496099029115).

10102121222021 is a wasteful number, since it uses less digits than its factorization.

10102121222021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1787032.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 10102121222021 its reverse (12022212120101), we get a palindrome (22124333342122).

The spelling of 10102121222021 in words is "ten trillion, one hundred two billion, one hundred twenty-one million, two hundred twenty-two thousand, twenty-one".