10122222021 has 8 divisors (see below), whose sum is σ = 13931660544. Its totient is φ = 6530465760.

The previous prime is 10122222001. The next prime is 10122222073. The reversal of 10122222021 is 12022222101.

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

It is not a de Polignac number, because 10122222021 - 2¹⁸ = 10121959877 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10122222001) 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, 54420456 + ... + 54420641.

It is an arithmetic number, because the mean of its divisors is an integer number (1741457568).

Almost surely, 2^10122222021 is an apocalyptic number.

It is an amenable number.

10122222021 is a deficient number, since it is larger than the sum of its proper divisors (3809438523).

10122222021 is a wasteful number, since it uses less digits than its factorization.

10122222021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108841131.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 10122222021 its reverse (12022222101), we get a palindrome (22144444122).

The spelling of 10122222021 in words is "ten billion, one hundred twenty-two million, two hundred twenty-two thousand, twenty-one".