212420401111102 has 4 divisors (see below), whose sum is σ = 318630601666656. Its totient is φ = 106210200555550.

The previous prime is 212420401111091. The next prime is 212420401111111. The reversal of 212420401111102 is 201111104024212.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×212420401111102² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53105100277774 + ... + 53105100277777.

It is an arithmetic number, because the mean of its divisors is an integer number (79657650416664).

Almost surely, 2^{212420401111102} is an apocalyptic number.

212420401111102 is a deficient number, since it is larger than the sum of its proper divisors (106210200555554).

212420401111102 is a wasteful number, since it uses less digits than its factorization.

212420401111102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106210200555553.

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 212420401111102 its reverse (201111104024212), we get a palindrome (413531505135314).

The spelling of 212420401111102 in words is "two hundred twelve trillion, four hundred twenty billion, four hundred one million, one hundred eleven thousand, one hundred two".