102211001012 has 6 divisors (see below), whose sum is σ = 178869251778. Its totient is φ = 51105500504.

The previous prime is 102211000999. The next prime is 102211001023. The reversal of 102211001012 is 210100112201.

It can be written as a sum of positive squares in only one way, i.e., 51259676836 + 50951324176 = 226406^2 + 225724^2 .

It is a junction number, because it is equal to n+sod(n) for n = 102211000984 and 102211001002.

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, 12776375123 + ... + 12776375130.

It is an arithmetic number, because the mean of its divisors is an integer number (29811541963).

Almost surely, 2^102211001012 is an apocalyptic number.

It is an amenable number.

102211001012 is a deficient number, since it is larger than the sum of its proper divisors (76658250766).

102211001012 is a wasteful number, since it uses less digits than its factorization.

102211001012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25552750257 (or 25552750255 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 102211001012 its reverse (210100112201), we get a palindrome (312311113213).

The spelling of 102211001012 in words is "one hundred two billion, two hundred eleven million, one thousand, twelve".