1102121010 has 48 divisors (see below), whose sum is σ = 2868217560. Its totient is φ = 293621760.

The previous prime is 1102120967. The next prime is 1102121029. The reversal of 1102121010 is 101212011.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 856791441 + 245329569 = 29271^2 + 15663^2 .

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1102120983 and 1102121001.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 101106 + ... + 111474.

Almost surely, 2^1102121010 is an apocalyptic number.

1102121010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1102121010 is an abundant number, since it is smaller than the sum of its proper divisors (1766096550).

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

1102121010 is a wasteful number, since it uses less digits than its factorization.

1102121010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11563 (or 11560 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 1102121010 is about 33198.2079335617. The cubic root of 1102121010 is about 1032.9431671868.

Adding to 1102121010 its reverse (101212011), we get a palindrome (1203333021).

The spelling of 1102121010 in words is "one billion, one hundred two million, one hundred twenty-one thousand, ten".