21122023010 has 32 divisors (see below), whose sum is σ = 42178968000. Its totient is φ = 7550551360.

The previous prime is 21122023001. The next prime is 21122023033. The reversal of 21122023010 is 1032022112.

It is a happy number.

It is a super-2 number, since 2×21122023010² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1620785 + ... + 1633764.

It is an arithmetic number, because the mean of its divisors is an integer number (1318092750).

Almost surely, 2^21122023010 is an apocalyptic number.

21122023010 is a deficient number, since it is larger than the sum of its proper divisors (21056944990).

21122023010 is a wasteful number, since it uses less digits than its factorization.

21122023010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3254626.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 21122023010 its reverse (1032022112), we get a palindrome (22154045122).

The spelling of 21122023010 in words is "twenty-one billion, one hundred twenty-two million, twenty-three thousand, ten".