2030001221951 has 2 divisors, whose sum is σ = 2030001221952. Its totient is φ = 2030001221950.

The previous prime is 2030001221947. The next prime is 2030001222019. The reversal of 2030001221951 is 1591221000302.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2030001221951 - 2² = 2030001221947 is a prime.

It is a super-2 number, since 2×2030001221951² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2030001221951.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2030001221251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1015000610975 + 1015000610976.

It is an arithmetic number, because the mean of its divisors is an integer number (1015000610976).

Almost surely, 2^{2030001221951} is an apocalyptic number.

2030001221951 is a deficient number, since it is larger than the sum of its proper divisors (1).

2030001221951 is an equidigital number, since it uses as much as digits as its factorization.

2030001221951 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 26.

The spelling of 2030001221951 in words is "two trillion, thirty billion, one million, two hundred twenty-one thousand, nine hundred fifty-one".