212100102124 has 6 divisors (see below), whose sum is σ = 371175178724. Its totient is φ = 106050051060.

The previous prime is 212100102103. The next prime is 212100102131. The reversal of 212100102124 is 421201001212.

It is a super-2 number, since 2×212100102124² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212100102098 and 212100102107.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26512512762 + ... + 26512512769.

Almost surely, 2^212100102124 is an apocalyptic number.

It is an amenable number.

212100102124 is a deficient number, since it is larger than the sum of its proper divisors (159075076600).

212100102124 is a wasteful number, since it uses less digits than its factorization.

212100102124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53025025535 (or 53025025533 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 212100102124 its reverse (421201001212), we get a palindrome (633301103336).

The spelling of 212100102124 in words is "two hundred twelve billion, one hundred million, one hundred two thousand, one hundred twenty-four".