10020121222 has 4 divisors (see below), whose sum is σ = 15030181836. Its totient is φ = 5010060610.

The previous prime is 10020121213. The next prime is 10020121259. The reversal of 10020121222 is 22212102001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22212102001 = 1613 ⋅13770677.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2505030304 + ... + 2505030307.

It is an arithmetic number, because the mean of its divisors is an integer number (3757545459).

Almost surely, 2^10020121222 is an apocalyptic number.

10020121222 is a deficient number, since it is larger than the sum of its proper divisors (5010060614).

10020121222 is an equidigital number, since it uses as much as digits as its factorization.

10020121222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5010060613.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 10020121222 its reverse (22212102001), we get a palindrome (32232223223).

The spelling of 10020121222 in words is "ten billion, twenty million, one hundred twenty-one thousand, two hundred twenty-two".