101221000022 has 4 divisors (see below), whose sum is σ = 151831500036. Its totient is φ = 50610500010.

The previous prime is 101221000009. The next prime is 101221000037. The reversal of 101221000022 is 220000122101.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 101220999967 and 101221000012.

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, 25305250004 + ... + 25305250007.

It is an arithmetic number, because the mean of its divisors is an integer number (37957875009).

Almost surely, 2^101221000022 is an apocalyptic number.

101221000022 is a deficient number, since it is larger than the sum of its proper divisors (50610500014).

101221000022 is an equidigital number, since it uses as much as digits as its factorization.

101221000022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50610500013.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 101221000022 its reverse (220000122101), we get a palindrome (321221122123).

The spelling of 101221000022 in words is "one hundred one billion, two hundred twenty-one million, twenty-two", and thus it is an aban number.