212011220101019 has 2 divisors, whose sum is σ = 212011220101020. Its totient is φ = 212011220101018.

The previous prime is 212011220100983. The next prime is 212011220101073. The reversal of 212011220101019 is 910101022110212.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212011220101019 - 2²⁸ = 212010951665563 is a prime.

It is a super-2 number, since 2×212011220101019² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212011220100985 and 212011220101003.

It is not a weakly prime, because it can be changed into another prime (212011220161019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106005610050509 + 106005610050510.

It is an arithmetic number, because the mean of its divisors is an integer number (106005610050510).

Almost surely, 2^{212011220101019} is an apocalyptic number.

212011220101019 is a deficient number, since it is larger than the sum of its proper divisors (1).

212011220101019 is an equidigital number, since it uses as much as digits as its factorization.

212011220101019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 23.

The spelling of 212011220101019 in words is "two hundred twelve trillion, eleven billion, two hundred twenty million, one hundred one thousand, nineteen".