1220021222104 has 16 divisors (see below), whose sum is σ = 2287856777400. Its totient is φ = 609926081472.

The previous prime is 1220021222099. The next prime is 1220021222153. The reversal of 1220021222104 is 4012221200221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10504837 + ... + 10620340.

Almost surely, 2^{1220021222104} is an apocalyptic number.

It is an amenable number.

1220021222104 is a deficient number, since it is larger than the sum of its proper divisors (1067835555296).

1220021222104 is a wasteful number, since it uses less digits than its factorization.

1220021222104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21132402 (or 21132398 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 1220021222104 its reverse (4012221200221), we get a palindrome (5232242422325).

The spelling of 1220021222104 in words is "one trillion, two hundred twenty billion, twenty-one million, two hundred twenty-two thousand, one hundred four".