1001022101010 has 64 divisors (see below), whose sum is σ = 2669501986560. Its totient is φ = 266928255360.

The previous prime is 1001022100979. The next prime is 1001022101021. The reversal of 1001022101010 is 101012201001.

It is a happy number.

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 = 1001022100983 and 1001022101001.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8144574 + ... + 8266566.

It is an arithmetic number, because the mean of its divisors is an integer number (41710968540).

Almost surely, 2^{1001022101010} is an apocalyptic number.

1001022101010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1001022101010 is an abundant number, since it is smaller than the sum of its proper divisors (1668479885550).

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

1001022101010 is a wasteful number, since it uses less digits than its factorization.

1001022101010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152400 (or 152394 counting only the distinct ones).

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

Adding to 1001022101010 its reverse (101012201001), we get a palindrome (1102034302011).

Subtracting from 1001022101010 its reverse (101012201001), we obtain a palindrome (900009900009).

The spelling of 1001022101010 in words is "one trillion, one billion, twenty-two million, one hundred one thousand, ten".