121012101010 has 8 divisors (see below), whose sum is σ = 217821781836. Its totient is φ = 48404840400.

The previous prime is 121012100983. The next prime is 121012101029. The reversal of 121012101010 is 10101210121.

121012101010 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It can be written as a sum of positive squares in 2 ways, for example, as 105831150489 + 15180950521 = 325317^2 + 123211^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (10), and also a Moran number because the ratio is a prime number: 12101210101 = 121012101010 / (1 + 2 + 1 + 0 + 1 + 2 + 1 + 0 + 1 + 0 + 1 + 0).

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6050605041 + ... + 6050605060.

Almost surely, 2^121012101010 is an apocalyptic number.

121012101010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121012101010 is a deficient number, since it is larger than the sum of its proper divisors (96809680826).

121012101010 is a wasteful number, since it uses less digits than its factorization.

121012101010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12101210108.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 121012101010 its reverse (10101210121), we get a palindrome (131113311131).

The spelling of 121012101010 in words is "one hundred twenty-one billion, twelve million, one hundred one thousand, ten".