121021022 has 4 divisors (see below), whose sum is σ = 181531536. Its totient is φ = 60510510.

The previous prime is 121021007. The next prime is 121021037. The reversal of 121021022 is 220120121.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (121021007) and next prime (121021037).

It is a junction number, because it is equal to n+sod(n) for n = 121020994 and 121021012.

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, 30255254 + ... + 30255257.

It is an arithmetic number, because the mean of its divisors is an integer number (45382884).

Almost surely, 2^121021022 is an apocalyptic number.

121021022 is a deficient number, since it is larger than the sum of its proper divisors (60510514).

121021022 is an equidigital number, since it uses as much as digits as its factorization.

121021022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60510513.

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

The square root of 121021022 is about 11000.9555039551. The cubic root of 121021022 is about 494.6373863715.

Adding to 121021022 its reverse (220120121), we get a palindrome (341141143).

Subtracting 121021022 from its reverse (220120121), we obtain a palindrome (99099099).

The spelling of 121021022 in words is "one hundred twenty-one million, twenty-one thousand, twenty-two".