102022011 has 40 divisors (see below), whose sum is σ = 187586784. Its totient is φ = 53809920.

The previous prime is 102022009. The next prime is 102022027. The reversal of 102022011 is 110220201.

It is not a de Polignac number, because 102022011 - 2¹ = 102022009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 102021984 and 102022002.

It is not an unprimeable number, because it can be changed into a prime (102022031) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 451 + ... + 14291.

Almost surely, 2^102022011 is an apocalyptic number.

102022011 is a deficient number, since it is larger than the sum of its proper divisors (85564773).

102022011 is a wasteful number, since it uses less digits than its factorization.

102022011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13873 (or 13864 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 102022011 is about 10100.5945864588. The cubic root of 102022011 is about 467.2664791201.

Adding to 102022011 its reverse (110220201), we get a palindrome (212242212).

The spelling of 102022011 in words is "one hundred two million, twenty-two thousand, eleven".