102021114 has 64 divisors (see below), whose sum is σ = 237758976. Its totient is φ = 28898304.

The previous prime is 102021113. The next prime is 102021133. The reversal of 102021114 is 411120201.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 102021114.

It is not an unprimeable number, because it can be changed into a prime (102021113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61504 + ... + 63140.

It is an arithmetic number, because the mean of its divisors is an integer number (3714984).

Almost surely, 2^102021114 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102021114, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118879488).

102021114 is an abundant number, since it is smaller than the sum of its proper divisors (135737862).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102021114 is a wasteful number, since it uses less digits than its factorization.

102021114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1719.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 102021114 is about 10100.5501830346. The cubic root of 102021114 is about 467.2651096795.

Adding to 102021114 its reverse (411120201), we get a palindrome (513141315).

The spelling of 102021114 in words is "one hundred two million, twenty-one thousand, one hundred fourteen".