101221022 has 16 divisors (see below), whose sum is σ = 181066752. Its totient is φ = 41494200.

The previous prime is 101221019. The next prime is 101221027. The reversal of 101221022 is 220122101.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 101220994 and 101221012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101221027) 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, 156854 + ... + 157497.

It is an arithmetic number, because the mean of its divisors is an integer number (11316672).

Almost surely, 2^101221022 is an apocalyptic number.

101221022 is a deficient number, since it is larger than the sum of its proper divisors (79845730).

101221022 is a wasteful number, since it uses less digits than its factorization.

101221022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314383.

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

The square root of 101221022 is about 10060.8658673098. The cubic root of 101221022 is about 466.0404067696.

Adding to 101221022 its reverse (220122101), we get a palindrome (321343123).

The spelling of 101221022 in words is "one hundred one million, two hundred twenty-one thousand, twenty-two".