101221020022 has 16 divisors (see below), whose sum is σ = 158451279840. Its totient is φ = 48404437312.

The previous prime is 101221020011. The next prime is 101221020023. The reversal of 101221020022 is 220020122101.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 101221019984 and 101221020011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101221020023) 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, 287754 + ... + 534082.

It is an arithmetic number, because the mean of its divisors is an integer number (9903204990).

Almost surely, 2^101221020022 is an apocalyptic number.

101221020022 is a deficient number, since it is larger than the sum of its proper divisors (57230259818).

101221020022 is a wasteful number, since it uses less digits than its factorization.

101221020022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255287.

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

Adding to 101221020022 its reverse (220020122101), we get a palindrome (321241142123).

The spelling of 101221020022 in words is "one hundred one billion, two hundred twenty-one million, twenty thousand, twenty-two".