1224121002 has 16 divisors (see below), whose sum is σ = 2636568480. Its totient is φ = 376652592.

The previous prime is 1224120979. The next prime is 1224121097. The reversal of 1224121002 is 2001214221.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7846852 + ... + 7847007.

It is an arithmetic number, because the mean of its divisors is an integer number (164785530).

Almost surely, 2^1224121002 is an apocalyptic number.

1224121002 is an abundant number, since it is smaller than the sum of its proper divisors (1412447478).

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

1224121002 is a wasteful number, since it uses less digits than its factorization.

1224121002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15693877.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 1224121002 is about 34987.4406323183. The cubic root of 1224121002 is about 1069.7314963744.

Adding to 1224121002 its reverse (2001214221), we get a palindrome (3225335223).

The spelling of 1224121002 in words is "one billion, two hundred twenty-four million, one hundred twenty-one thousand, two".