1011121010 has 16 divisors (see below), whose sum is σ = 1820494872. Its totient is φ = 404342400.

The previous prime is 1011120997. The next prime is 1011121021. The reversal of 1011121010 is 101211101.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 412780489 + 598340521 = 20317^2 + 24461^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35270 + ... + 57150.

Almost surely, 2^1011121010 is an apocalyptic number.

1011121010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1011121010 is a deficient number, since it is larger than the sum of its proper divisors (809373862).

1011121010 is a wasteful number, since it uses less digits than its factorization.

1011121010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26509.

The product of its (nonzero) digits is 2, while the sum is 8.

The square root of 1011121010 is about 31798.1290330107. The cubic root of 1011121010 is about 1003.6933457372.

Adding to 1011121010 its reverse (101211101), we get a palindrome (1112332111).

Subtracting from 1011121010 its reverse (101211101), we obtain a palindrome (909909909).

The spelling of 1011121010 in words is "one billion, eleven million, one hundred twenty-one thousand, ten".