144774121002 has 48 divisors (see below), whose sum is σ = 345036609792. Its totient is φ = 40355152320.

The previous prime is 144774120979. The next prime is 144774121003. The reversal of 144774121002 is 200121477441.

It is a super-2 number, since 2×144774121002² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (144774121003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5993178 + ... + 6017285.

It is an arithmetic number, because the mean of its divisors is an integer number (7188262704).

Almost surely, 2^144774121002 is an apocalyptic number.

144774121002 is an abundant number, since it is smaller than the sum of its proper divisors (200262488790).

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

144774121002 is a wasteful number, since it uses less digits than its factorization.

144774121002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12010523 (or 12010516 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 33.

Adding to 144774121002 its reverse (200121477441), we get a palindrome (344895598443).

The spelling of 144774121002 in words is "one hundred forty-four billion, seven hundred seventy-four million, one hundred twenty-one thousand, two".