122120030402 has 4 divisors (see below), whose sum is σ = 183180045606. Its totient is φ = 61060015200.

The previous prime is 122120030353. The next prime is 122120030411. The reversal of 122120030402 is 204030021221.

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., 112654880881 + 9465149521 = 335641^2 + 97289^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30530007599 + ... + 30530007602.

Almost surely, 2^122120030402 is an apocalyptic number.

122120030402 is a deficient number, since it is larger than the sum of its proper divisors (61060015204).

122120030402 is an equidigital number, since it uses as much as digits as its factorization.

122120030402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61060015203.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 122120030402 its reverse (204030021221), we get a palindrome (326150051623).

The spelling of 122120030402 in words is "one hundred twenty-two billion, one hundred twenty million, thirty thousand, four hundred two".