3123220001021 has 8 divisors (see below), whose sum is σ = 3223990443264. Its totient is φ = 3022450896960.

The previous prime is 3123220001017. The next prime is 3123220001053. The reversal of 3123220001021 is 1201000223213.

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

It is a cyclic number.

It is not a de Polignac number, because 3123220001021 - 2² = 3123220001017 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 (3123220001621) 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, 6875285 + ... + 7315461.

It is an arithmetic number, because the mean of its divisors is an integer number (402998805408).

Almost surely, 2^{3123220001021} is an apocalyptic number.

3123220001021 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3123220001021 is a deficient number, since it is larger than the sum of its proper divisors (100770442243).

3123220001021 is a wasteful number, since it uses less digits than its factorization.

3123220001021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 669091.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 3123220001021 its reverse (1201000223213), we get a palindrome (4324220224234).

The spelling of 3123220001021 in words is "three trillion, one hundred twenty-three billion, two hundred twenty million, one thousand, twenty-one".