122211201022142 has 4 divisors (see below), whose sum is σ = 183316801533216. Its totient is φ = 61105600511070.

The previous prime is 122211201022121. The next prime is 122211201022151. The reversal of 122211201022142 is 241220102112221.

It is a happy number.

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

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, 30552800255534 + ... + 30552800255537.

It is an arithmetic number, because the mean of its divisors is an integer number (45829200383304).

Almost surely, 2^{122211201022142} is an apocalyptic number.

122211201022142 is a deficient number, since it is larger than the sum of its proper divisors (61105600511074).

122211201022142 is an equidigital number, since it uses as much as digits as its factorization.

122211201022142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61105600511073.

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 122211201022142 its reverse (241220102112221), we get a palindrome (363431303134363).

The spelling of 122211201022142 in words is "one hundred twenty-two trillion, two hundred eleven billion, two hundred one million, twenty-two thousand, one hundred forty-two".