212021101023 has 32 divisors (see below), whose sum is σ = 298706933760. Its totient is φ = 133398666720.

The previous prime is 212021101009. The next prime is 212021101037. The reversal of 212021101023 is 320101120212.

It is an interprime number because it is at equal distance from previous prime (212021101009) and next prime (212021101037).

It is not a de Polignac number, because 212021101023 - 2¹³ = 212021092831 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212021100993 and 212021101011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212021101003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29108140 + ... + 29115422.

It is an arithmetic number, because the mean of its divisors is an integer number (9334591680).

Almost surely, 2^212021101023 is an apocalyptic number.

212021101023 is a deficient number, since it is larger than the sum of its proper divisors (86685832737).

212021101023 is a wasteful number, since it uses less digits than its factorization.

212021101023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9179.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 212021101023 its reverse (320101120212), we get a palindrome (532122221235).

The spelling of 212021101023 in words is "two hundred twelve billion, twenty-one million, one hundred one thousand, twenty-three".