102111202101 has 16 divisors (see below), whose sum is σ = 139152888000. Its totient is φ = 66588067200.

The previous prime is 102111202099. The next prime is 102111202133. The reversal of 102111202101 is 101202111201.

It is not a de Polignac number, because 102111202101 - 2¹ = 102111202099 is a prime.

It is a super-2 number, since 2×102111202101² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102111207101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2004976 + ... + 2055273.

It is an arithmetic number, because the mean of its divisors is an integer number (8697055500).

Almost surely, 2^102111202101 is an apocalyptic number.

It is an amenable number.

102111202101 is a deficient number, since it is larger than the sum of its proper divisors (37041685899).

102111202101 is a wasteful number, since it uses less digits than its factorization.

102111202101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4060436.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 102111202101 its reverse (101202111201), we get a palindrome (203313313302).

The spelling of 102111202101 in words is "one hundred two billion, one hundred eleven million, two hundred two thousand, one hundred one".