121221022 has 8 divisors (see below), whose sum is σ = 195818616. Its totient is φ = 55948152.

The previous prime is 121221019. The next prime is 121221029. The reversal of 121221022 is 220122121.

It is a happy number.

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

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 121220993 and 121221011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121221029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2331148 + ... + 2331199.

It is an arithmetic number, because the mean of its divisors is an integer number (24477327).

Almost surely, 2^121221022 is an apocalyptic number.

121221022 is a deficient number, since it is larger than the sum of its proper divisors (74597594).

121221022 is a wasteful number, since it uses less digits than its factorization.

121221022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4662362.

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

The square root of 121221022 is about 11010.0418709467. The cubic root of 121221022 is about 494.9097165546.

Adding to 121221022 its reverse (220122121), we get a palindrome (341343143).

The spelling of 121221022 in words is "one hundred twenty-one million, two hundred twenty-one thousand, twenty-two".