1220020020101 has 8 divisors (see below), whose sum is σ = 1248574941504. Its totient is φ = 1191473388000.

The previous prime is 1220020020067. The next prime is 1220020020119. The reversal of 1220020020101 is 1010200200221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1220020020101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220020026101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1774025 + ... + 2363726.

It is an arithmetic number, because the mean of its divisors is an integer number (156071867688).

Almost surely, 2^{1220020020101} is an apocalyptic number.

It is an amenable number.

1220020020101 is a deficient number, since it is larger than the sum of its proper divisors (28554921403).

1220020020101 is an equidigital number, since it uses as much as digits as its factorization.

1220020020101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4144651.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 1220020020101 its reverse (1010200200221), we get a palindrome (2230220220322).

The spelling of 1220020020101 in words is "one trillion, two hundred twenty billion, twenty million, twenty thousand, one hundred one".