1102202021 has 16 divisors (see below), whose sum is σ = 1226016000. Its totient is φ = 985552128.

The previous prime is 1102202009. The next prime is 1102202033. The reversal of 1102202021 is 1202022011.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1102202009) and next prime (1102202033).

It is a cyclic number.

It is not a de Polignac number, because 1102202021 - 2²² = 1098007717 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1102201993 and 1102202011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1102202821) 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, 48800 + ... + 67718.

It is an arithmetic number, because the mean of its divisors is an integer number (76626000).

Almost surely, 2^1102202021 is an apocalyptic number.

It is an amenable number.

1102202021 is a deficient number, since it is larger than the sum of its proper divisors (123813979).

1102202021 is a wasteful number, since it uses less digits than its factorization.

1102202021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19108.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1102202021 is about 33199.4280221813. The cubic root of 1102202021 is about 1032.9684752694.

Adding to 1102202021 its reverse (1202022011), we get a palindrome (2304224032).

The spelling of 1102202021 in words is "one billion, one hundred two million, two hundred two thousand, twenty-one".