121021222022 has 4 divisors (see below), whose sum is σ = 181531833036. Its totient is φ = 60510611010.

The previous prime is 121021222009. The next prime is 121021222039. The reversal of 121021222022 is 220222120121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 220222120121 = 311 ⋅708109711.

It is a super-2 number, since 2×121021222022² (a number of 23 digits) contains 22 as substring.

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, 30255305504 + ... + 30255305507.

It is an arithmetic number, because the mean of its divisors is an integer number (45382958259).

Almost surely, 2^121021222022 is an apocalyptic number.

121021222022 is a deficient number, since it is larger than the sum of its proper divisors (60510611014).

121021222022 is an equidigital number, since it uses as much as digits as its factorization.

121021222022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60510611013.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 121021222022 its reverse (220222120121), we get a palindrome (341243342143).

The spelling of 121021222022 in words is "one hundred twenty-one billion, twenty-one million, two hundred twenty-two thousand, twenty-two".