1220120022002 has 16 divisors (see below), whose sum is σ = 2091648517632. Its totient is φ = 522905032320.

The previous prime is 1220120021977. The next prime is 1220120022013. The reversal of 1220120022002 is 2002200210221.

It is a Harshad number since it is a multiple of its sum of digits (14).

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, 3743423 + ... + 4056285.

It is an arithmetic number, because the mean of its divisors is an integer number (130728032352).

Almost surely, 2^{1220120022002} is an apocalyptic number.

1220120022002 is a deficient number, since it is larger than the sum of its proper divisors (871528495630).

1220120022002 is a wasteful number, since it uses less digits than its factorization.

1220120022002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591433.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 1220120022002 its reverse (2002200210221), we get a palindrome (3222320232223).

The spelling of 1220120022002 in words is "one trillion, two hundred twenty billion, one hundred twenty million, twenty-two thousand, two".