1220000020106 has 24 divisors (see below), whose sum is σ = 2240816366880. Its totient is φ = 495338353272.

The previous prime is 1220000020097. The next prime is 1220000020121. The reversal of 1220000020106 is 6010200000221.

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 327602870 + ... + 327606593.

It is an arithmetic number, because the mean of its divisors is an integer number (93367348620).

Almost surely, 2^{1220000020106} is an apocalyptic number.

1220000020106 is a deficient number, since it is larger than the sum of its proper divisors (1020816346774).

1220000020106 is a wasteful number, since it uses less digits than its factorization.

1220000020106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655209498 (or 655209491 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 1220000020106 its reverse (6010200000221), we get a palindrome (7230200020327).

The spelling of 1220000020106 in words is "one trillion, two hundred twenty billion, twenty thousand, one hundred six".