212293011 has 24 divisors (see below), whose sum is σ = 327058432. Its totient is φ = 119988000.

The previous prime is 212293007. The next prime is 212293019. The reversal of 212293011 is 110392212.

It is not a de Polignac number, because 212293011 - 2² = 212293007 is a prime.

It is a super-2 number, since 2×212293011² = 90136645038892242, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212293019) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 213726 + ... + 214716.

Almost surely, 2^212293011 is an apocalyptic number.

212293011 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

212293011 is a deficient number, since it is larger than the sum of its proper divisors (114765421).

212293011 is an equidigital number, since it uses as much as digits as its factorization.

212293011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1203 (or 1102 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 212293011 is about 14570.2783432576. The cubic root of 212293011 is about 596.5477778098.

The spelling of 212293011 in words is "two hundred twelve million, two hundred ninety-three thousand, eleven".