210101220012212 has 24 divisors (see below), whose sum is σ = 389324149590600. Its totient is φ = 98866350218240.

The previous prime is 210101220012121. The next prime is 210101220012223. The reversal of 210101220012212 is 212210022101012.

It can be written as a sum of positive squares in 4 ways, for example, as 171346162685476 + 38755057326736 = 13089926^2 + 6225356^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73782089 + ... + 76576752.

It is an arithmetic number, because the mean of its divisors is an integer number (16221839566275).

Almost surely, 2^{210101220012212} is an apocalyptic number.

It is an amenable number.

210101220012212 is a deficient number, since it is larger than the sum of its proper divisors (179222929578388).

210101220012212 is a wasteful number, since it uses less digits than its factorization.

210101220012212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150379411 (or 150379409 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 210101220012212 its reverse (212210022101012), we get a palindrome (422311242113224).

The spelling of 210101220012212 in words is "two hundred ten trillion, one hundred one billion, two hundred twenty million, twelve thousand, two hundred twelve".