1211210000070 has 64 divisors (see below), whose sum is σ = 3389975539200. Its totient is φ = 276847997664.

The previous prime is 1211210000069. The next prime is 1211210000107. The reversal of 1211210000070 is 700000121121.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

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, 58843452 + ... + 58864031.

It is an arithmetic number, because the mean of its divisors is an integer number (52968367800).

Almost surely, 2^{1211210000070} is an apocalyptic number.

1211210000070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1211210000070 is an abundant number, since it is smaller than the sum of its proper divisors (2178765539130).

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

1211210000070 is a wasteful number, since it uses less digits than its factorization.

1211210000070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117707514 (or 117707500 counting only the distinct ones).

The product of its (nonzero) digits is 28, while the sum is 15.

Adding to 1211210000070 its reverse (700000121121), we get a palindrome (1911210121191).

The spelling of 1211210000070 in words is "one trillion, two hundred eleven billion, two hundred ten million, seventy", and thus it is an aban number.