1020121015010 has 16 divisors (see below), whose sum is σ = 1944230640696. Its totient is φ = 384045558528.

The previous prime is 1020121014977. The next prime is 1020121015049. The reversal of 1020121015010 is 105101210201.

It can be written as a sum of positive squares in 4 ways, for example, as 729898544281 + 290222470729 = 854341^2 + 538723^2 .

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, 3000355757 + ... + 3000356096.

Almost surely, 2^{1020121015010} is an apocalyptic number.

1020121015010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1020121015010 is a deficient number, since it is larger than the sum of its proper divisors (924109625686).

1020121015010 is a wasteful number, since it uses less digits than its factorization.

1020121015010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6000711877.

The product of its (nonzero) digits is 20, while the sum is 14.

Adding to 1020121015010 its reverse (105101210201), we get a palindrome (1125222225211).

The spelling of 1020121015010 in words is "one trillion, twenty billion, one hundred twenty-one million, fifteen thousand, ten".