122002422442154 has 4 divisors (see below), whose sum is σ = 183003633663234. Its totient is φ = 61001211221076.

The previous prime is 122002422442081. The next prime is 122002422442171. The reversal of 122002422442154 is 451244224200221.

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., 70175050473025 + 51827371969129 = 8377055^2 + 7199123^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30500605610537 + ... + 30500605610540.

Almost surely, 2^{122002422442154} is an apocalyptic number.

122002422442154 is a deficient number, since it is larger than the sum of its proper divisors (61001211221080).

122002422442154 is an equidigital number, since it uses as much as digits as its factorization.

122002422442154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61001211221079.

The product of its (nonzero) digits is 81920, while the sum is 35.

Adding to 122002422442154 its reverse (451244224200221), we get a palindrome (573246646642375).

The spelling of 122002422442154 in words is "one hundred twenty-two trillion, two billion, four hundred twenty-two million, four hundred forty-two thousand, one hundred fifty-four".