1201402312122 has 32 divisors (see below), whose sum is σ = 2588088222720. Its totient is φ = 370567174320.

The previous prime is 1201402312091. The next prime is 1201402312129. The reversal of 1201402312122 is 2212132041021.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1201402312129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122537154 + ... + 122546957.

It is an arithmetic number, because the mean of its divisors is an integer number (80877756960).

Almost surely, 2^{1201402312122} is an apocalyptic number.

1201402312122 is an abundant number, since it is smaller than the sum of its proper divisors (1386685910598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1201402312122 is a wasteful number, since it uses less digits than its factorization.

1201402312122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245084178.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 1201402312122 its reverse (2212132041021), we get a palindrome (3413534353143).

The spelling of 1201402312122 in words is "one trillion, two hundred one billion, four hundred two million, three hundred twelve thousand, one hundred twenty-two".