102111211010 has 16 divisors (see below), whose sum is σ = 191791492416. Its totient is φ = 39068637168.

The previous prime is 102111210973. The next prime is 102111211021. The reversal of 102111211010 is 10112111201.

It is a junction number, because it is equal to n+sod(n) for n = 102111210982 and 102111211000.

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, 221980664 + ... + 221981123.

It is an arithmetic number, because the mean of its divisors is an integer number (11986968276).

Almost surely, 2^102111211010 is an apocalyptic number.

102111211010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102111211010 is a deficient number, since it is larger than the sum of its proper divisors (89680281406).

102111211010 is a wasteful number, since it uses less digits than its factorization.

102111211010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443961817.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 102111211010 its reverse (10112111201), we get a palindrome (112223322211).

It can be divided in two parts, 10211 and 1211010, that added together give a palindrome (1221221).

The spelling of 102111211010 in words is "one hundred two billion, one hundred eleven million, two hundred eleven thousand, ten".