20200210212139 has 2 divisors, whose sum is σ = 20200210212140. Its totient is φ = 20200210212138.

The previous prime is 20200210212071. The next prime is 20200210212179. The reversal of 20200210212139 is 93121201200202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20200210212139 - 2⁷ = 20200210212011 is a prime.

It is a super-2 number, since 2×20200210212139² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20200210212179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10100105106069 + 10100105106070.

It is an arithmetic number, because the mean of its divisors is an integer number (10100105106070).

Almost surely, 2^{20200210212139} is an apocalyptic number.

20200210212139 is a deficient number, since it is larger than the sum of its proper divisors (1).

20200210212139 is an equidigital number, since it uses as much as digits as its factorization.

20200210212139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 25.

The spelling of 20200210212139 in words is "twenty trillion, two hundred billion, two hundred ten million, two hundred twelve thousand, one hundred thirty-nine".