121122120202 has 8 divisors (see below), whose sum is σ = 181744714116. Its totient is φ = 60540548832.

The previous prime is 121122120143. The next prime is 121122120277. The reversal of 121122120202 is 202021221121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 116266678441 + 4855441761 = 340979^2 + 69681^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10248253 + ... + 10260064.

Almost surely, 2^121122120202 is an apocalyptic number.

121122120202 is a deficient number, since it is larger than the sum of its proper divisors (60622593914).

121122120202 is a wasteful number, since it uses less digits than its factorization.

121122120202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20511272.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 121122120202 its reverse (202021221121), we get a palindrome (323143341323).

The spelling of 121122120202 in words is "one hundred twenty-one billion, one hundred twenty-two million, one hundred twenty thousand, two hundred two".