121221533034122 has 4 divisors (see below), whose sum is σ = 181832299551186. Its totient is φ = 60610766517060.

The previous prime is 121221533034029. The next prime is 121221533034179. The reversal of 121221533034122 is 221430335122121.

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

It can be written as a sum of positive squares in only one way, i.e., 114666596646001 + 6554936388121 = 10708249^2 + 2560261^2 .

It is a super-2 number, since 2×121221533034122² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30305383258529 + ... + 30305383258532.

Almost surely, 2^{121221533034122} is an apocalyptic number.

121221533034122 is a deficient number, since it is larger than the sum of its proper divisors (60610766517064).

121221533034122 is an equidigital number, since it uses as much as digits as its factorization.

121221533034122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60610766517063.

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 121221533034122 its reverse (221430335122121), we get a palindrome (342651868156243).

The spelling of 121221533034122 in words is "one hundred twenty-one trillion, two hundred twenty-one billion, five hundred thirty-three million, thirty-four thousand, one hundred twenty-two".